from:"Robert"

[neonixie-l] IEE Nimo tube power supply

2024-07-18 Thread Robert Norman

 On EBay with four tubes  
https://www.ebay.co.uk/itm/305672059360?mkcid=16=1=711-127632-2357-0=2izFn68PQ-6=4429486=U1YeAcPgQ5y=_ver=artemis=COPY

Not my auction


Rob

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Re: [neonixie-l] SP-252 Multi Segment Panaplex Display based Clock

2024-07-06 Thread Robert

I have this clock and it’s very niceRobOn 6 Jul 2024, at 06:09, Peter Hall  wrote:Absolutely brilliant.luv it.. I'm Jealous as usualFromPeter Hall insidiousnixies輦Utube On 6 July 2024 12:53 pm, Richard Scales  wrote:This might be considered overkill but I have completed a clock which uses the B-7971 Smart Socket design to control six SP-252 displays giving 12 digits on which time is displayed along with date, temp, pressure and 10 different scrolling text messages (each of 70 characters in length).The clock consists of a backplane, the smart socket boards (twelve of them, two per display) and display holding boards.The software now has a web gui which provides access to all the settings as well as the user definable text messages. Many thanks to Paul Andrews for helping with this.An optional PIR device will wake the displays from sleeping whenever it is activated and the whole thing is held together within my regular (one trick pony!) acrylic case design.Although it is not clear in the pictures, there are two individual smart socket PCBs per display, one on top and one underneath. After the initial test build I elected to have the smart socket PCBs pre-fabbed, they are double sided and each one has 30 x 0603 resistors and 15 x MMBTA42 transistors.Why have just one micro in a clock when you can have 13! - Richard



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Re: [neonixie-l] Re: B5092 to ZM1022? Other options?

2024-06-21 Thread Robert

PV Electronics still has GN-4ITT GN-4 Nixie Tube [GN4] - £11.95 - PV Electronicspvelectronics.co.ukThanksRobOn 21 Jun 2024, at 09:34, andybiker  wrote:P.S. no affiliation with any of these !Just used a search engine...On Friday, June 21, 2024 at 9:20:05 AM UTC+1 andybiker wrote:This style tube is often available on the internet as well as the auction site.https://www.langrex.co.uk/products/b-5092-a-gn4a-burroughs-nixie-tube-nos-0-9-display-1-piece-lb13/https://www.ebay.co.uk/itm/266172486541(same person but ebay)https://www.ebay.co.uk/itm/405036354231https://www.ebay.co.uk/itm/166831422264Often as GN4 or GN4Abeware the early ones with a semisphere front, they tend to have no mercury, all the ones with just a domed front seem to - if this makes sense!. Like this one:- https://www.ebay.co.uk/itm/394846677458Regards,AndrewOn Friday, June 21, 2024 at 12:04:45 AM UTC+1 J Forbes wrote:I only bought six of them, I have no idea what happened to the others. That was at a store, 15 years agoOn Thursday, June 20, 2024 at 1:21:59 PM UTC-7 Leroy Jones wrote:Hello, J. Forbes:Are any of those for sale?On Thursday, June 20, 2024 at 4:17:26 PM UTC-4 Leroy Jones wrote:I have a clock here built in 2010 that uses 6844A tubes.    Those work great and look very nice but do not have mercury so they haverelatively short lives.   But I have had fairly decent service out of mine.  A while back I got some more spares from members here, includingsome 5092s.    But please do check out 6844 tubes as an option.On Thursday, June 20, 2024 at 3:55:36 PM UTC-4 gregebert wrote:It's worth the time and effort to find NOS 5092 tubes one-by-one if necessary; they are very high quality. I dont know how old your kids are, but our son and daughter soldered their nixie clocks so they appreciate them more.On Thursday, June 20, 2024 at 10:35:56 AM UTC-7 J Forbes wrote:guess I should have bought more of these back in 2009sorryOn Thursday, June 20, 2024 at 10:18:10 AM UTC-7 MikeDL wrote:Hi!Years back I designed and built a B-5092 based clock and it's been working great. I'd like to build a couple more clocks for the kids. Looking around for additional tubes it seems the 5092s have gotten much harder and more expensive and it looks tough to find two sets of six plus some backups.Are the ZM1022s drop-in replacements for the B-5092, or just really close?Any other similar size/shape tubes that people are finding success with? I can redesign my circuit board if it makes sense to switch to something like an IN-4 with a lot more backups :-), but that would be less desirable.Thanks in advance!



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Re: [neonixie-l] B7971 with 2 segments lighting together

2024-06-16 Thread Robert

This is a PCB typeThanksRobOn 16 Jun 2024, at 17:42, Jeff Walton  wrote:You probably have a different failure mechanism than the majority of the shorts that we have been able to deal with.   Depending on the type of tube it is (wire backplane vs PCB style), the failure mechanisms are potentially different.  If you see no visual evidence of a short near the pins, then you likely have an issue in the backplane.  Your photo shows good clearance of the cathode elements.  Have you checked the resistance between the segment pins?  On Sunday, June 16, 2024 at 10:45:12 AM UTC-5 Robert wrote:My issue seems to be a bit different as it’s on segments 5 and 6, not on a corner, on the left hand side when looking at the tube 





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Re: [neonixie-l] B7971 with 2 segments lighting together

2024-06-16 Thread Robert

My issue seems to be a bit different as it’s on segments 5 and 6, not on a 
corner, on the left hand side when looking at the tube 

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Thanks
Rob

> On 16 Jun 2024, at 08:13, Jeff Walton  wrote:
> 
> Some narrative and photos for fixing mechanical shorts in the 7971.  I've 
> seen this primarily in the corners where segments at right angles have 
> touched or overlapped.  
> 
> https://groups.google.com/g/neonixie-l/c/w4YmXnY9dgE/m/8o-AsZZyBQAJ
> 
> 
> Jeff Walton
> 
> 
> -Original Message-
> From: neonixie-l@googlegroups.com  On Behalf Of 
> Robert
> Sent: Saturday, June 15, 2024 10:27 AM
> To: neonixie-l@googlegroups.com
> Subject: Re: [neonixie-l] B7971 with 2 segments lighting together
> 
> Thanks, that would be useful
> 
> 
> Rob
> 
>> On 15 Jun 2024, at 16:24, Michail Wilson  wrote:
>> 
>> Not common, but if you look closely, you will see where the wire of the 
>> segment is overlapping the other.
>> You can smack it around to try to dislodge it, but at the risk of damage or 
>> breaking.
>> 
>> Over time, I've had 10 units with similar issues.  I've been able to restore 
>> 8, but on 2 of them (1 I recently bought on ebay), I've separated them, but 
>> in doing so, one of the two segments would no longer light up as if the 
>> contact was bad from the start or disconnected during my smack around test.
>> 
>> Take a close up picture of the segments where they come close to each other. 
>>  I have a couple I could upload before and after if interested.
>> 
>> Michail Wilson
>> 206-920-6312
>> 
>> -Original Message-
>> From: neonixie-l@googlegroups.com  On Behalf Of 
>> Robert
>> Sent: Saturday, June 15, 2024 7:37 AM
>> To: neonixie-l@googlegroups.com
>> Subject: [neonixie-l] B7971 with 2 segments lighting together
>> 
>> Hi
>> 
>> I have a B7971 where when the bottom left vertical segment lights the top 
>> left also lights
>> 
>> Is this a common issue?
>> 
>> Thanks
>> Rob
>> 
> 
> 
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Re: [neonixie-l] B7971 with 2 segments lighting together

2024-06-15 Thread Robert

Thanks, that would be useful


Rob

> On 15 Jun 2024, at 16:24, Michail Wilson  wrote:
> 
> Not common, but if you look closely, you will see where the wire of the 
> segment is overlapping the other.
> You can smack it around to try to dislodge it, but at the risk of damage or 
> breaking.
> 
> Over time, I've had 10 units with similar issues.  I've been able to restore 
> 8, but on 2 of them (1 I recently bought on ebay), I've separated them, but 
> in doing so, one of the two segments would no longer light up as if the 
> contact was bad from the start or disconnected during my smack around test.
> 
> Take a close up picture of the segments where they come close to each other.  
> I have a couple I could upload before and after if interested.
> 
> Michail Wilson
> 206-920-6312
> 
> -Original Message-----
> From: neonixie-l@googlegroups.com  On Behalf Of 
> Robert
> Sent: Saturday, June 15, 2024 7:37 AM
> To: neonixie-l@googlegroups.com
> Subject: [neonixie-l] B7971 with 2 segments lighting together
> 
> Hi
> 
> I have a B7971 where when the bottom left vertical segment lights the top 
> left also lights
> 
> Is this a common issue?
> 
> Thanks
> Rob
> 
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> https://groups.google.com/d/msgid/neonixie-l/4F9F0348-3BB1-400A-9E59-68A66BD41D9B%40gmail.com.
> 
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[neonixie-l] B7971 with 2 segments lighting together

2024-06-15 Thread Robert

Hi

I have a B7971 where when the bottom left vertical segment lights the top left 
also lights

Is this a common issue?

Thanks
Rob

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Re: [neonixie-l] Re: GN-1

2024-06-04 Thread Robert Norman

Thanks Paul, I’ve messaged youRobOn 4 Jun 2024, at 18:44, Paul Andrews  wrote:They seem to be pretty rare - at least I've only seen them for sale once. I have quite a few if you're interested, note the black coating on the sides is split on all of them - it becomes brittle and shrinks with age. Also note that you shouldn't use them in a clock as they have no mercury.On Tuesday, June 4, 2024 at 11:08:55 AM UTC-4 Robert wrote:How rare is this early nixie and is it valuable?

Thanks
Rib




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[neonixie-l] GN-1

2024-06-04 Thread Robert

How rare is this early nixie and is it valuable?

Thanks
Rib

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[neonixie-l] Substitution list

2024-05-05 Thread Robert

Is there a comprehensive substitution list anywhere on line?

Thanks
Rob

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Re: [neonixie-l] ZM1350

2024-04-28 Thread Robert

Good price?RobOn 28 Apr 2024, at 16:16, Michail Wilson  wrote:








 

Michail Wilson
206-920-6312

 


From: neonixie-l@googlegroups.com 
On Behalf Of Robert
Sent: Sunday, April 28, 2024 4:55 AM
To: neonixie-l@googlegroups.com
Subject: [neonixie-l] ZM1350


 
Not my auction but did anyone on here get them 

 


 https://www.ebay.co.uk/itm/266778846760?mkcid=16=1=711-127632-2357-0=oUHk6HLEQUG=4429486=U1YeAcPgQ5y=_ver=artemis=COPY


 


 


Rob



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[neonixie-l] ZM1350

2024-04-28 Thread Robert

Not my auction but did anyone on here get them  https://www.ebay.co.uk/itm/266778846760?mkcid=16=1=711-127632-2357-0=oUHk6HLEQUG=4429486=U1YeAcPgQ5y=_ver=artemis=COPYRob



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[neonixie-l] Rodan tubes

2024-04-23 Thread Robert

Do they have date codes?


Rob

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Re: [neonixie-l] SP-252 Smart Socket based device

2024-04-12 Thread Robert

Excellent work, I want one!RobOn 10 Apr 2024, at 07:05, Peter Hall wrote:Stunning as usual..1 x Omnixie to power it all.AmazingFromPeter Hall insidiousnixies輦Utube On 10 Apr 2024 1:46 pm, Richard Scales wrote:If there was ever an example of over engineering then this must be it!

Here we have 14 PCBs, 180 transistors, 360 resistors and 13 processors all working together to drive six SP-252 multi segment Panaplex displays using the Smart
Socket circuit that was designed originally for B-7971 tubes.
It's taken quite some time to pull this all together, mostly because of all the SMD parts and my soldering skills - the resistors are 0603.

Regardless, the hardware is done, now working on the software to take advantage of 12 digits of alpha numeric neon.

Each display sits on its own PCB. Two Smart socket PCB's plug in to the back of the display board - one on top - one underneath - these then plug in to the backplane that has the power supplies, sensor and Wemos.Time is NTP synced, at 30 seconds past each minute it will display (in a scrolling or some other transitioning style):The date - like" WEDNESDAY 10TH APRIL 2024"orSensor Data which is temperature, humidity, pressureorOne of 10 pre-defined text sequences
I plan to add a web gui to allow setting of the timezone and definition of the text messages to scroll at some point - Many thanks to Paul Andrews for his assistance with that.

The thing now sits in a case and looks a lot more presentable - I'll get some pictures of that asap. - Richard

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[neonixie-l] Urwerk SpaceTime Blade clock

2024-04-07 Thread Robert

https://www.ablogtowatch.com/new-release-urwerk-spacetime-blade-nixie-tube-clock/


Rob

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Re: [neonixie-l] eBay B-7971

2024-04-02 Thread Robert

Did anyone here buy them?RobOn 27 Mar 2024, at 12:37, Michail Wilson  wrote:







Careful.
 
https://www.ebay.com/itm/196312588768
 
I asked…
Have you done any testing? Example with a plasma ball? Visible cracks? You willing to accept returns if they don’t work if opened and tested on video?
 
His response was:
Can you please Read? Not tested! UNTESTED! AS IS for display ONLY and Absolutely no return. For parts or not working.
 
 
I was hoping he would at least check for cracks, but instead he added text to his auction saying…
Final Sale and NO Returns. Tubes are for display ONLY in Untested condition.
 
 
Michail






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[neonixie-l] Older Mod 6

2024-03-31 Thread Robert

Not my auction, in the Uk 
https://www.ebay.co.uk/itm/335326100337?mkcid=16=1=711-127632-2357-0=yHvTCVe-Q8q=4429486=U1YeAcPgQ5y=_ver=artemis=COPY


Rob

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[neonixie-l] ZM1100

2024-03-09 Thread Robert

Anyone know of a source for these?


Rob

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[neonixie-l] Flicker in Neons used as colons

2024-03-02 Thread Robert

I noticed this on a number of clocks, sometimes within months, none have 
subsequently failed though

How common is this?

No issues with the Daibor colons although they are a different beast


Rob

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[neonixie-l] Rare Nixie

2024-02-28 Thread Robert

How rare is this?Collectible rare Nixie tube probably a sample for exhibition or demonstration #1ebay.co.ukRob



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Re: [neonixie-l] B-7971 on ebay for $140

2024-02-10 Thread Robert G. Schaffrath

I would be in the same situation myself. As I have noted before, back in
1979 when I was still in High School, I had built a six-digit clock based
on an MM5311 clock chip (still works though many components upgraded by me
over the years). The tubes and sockets came from three of the stock ticker
boards that were still plentiful back then. I decided at the time that I
wanted six spare tubes so that someday I could replace any tubes that
stopped working (they still work). The company I bought the boards from,
Meshna Electronics in Lynn, Massachusetts, also sold tubes individually. At
that time, he was selling used pulls for $4/each and what were claimed to
be NOS tubes for $5/each. I opted to purchase six of the NOS which came to
$30 plus shipping. They came individually wrapped in bubble wrap in a small
plain carton along with an original Burroughs datasheet on the tubes. I
still have them in that little carton and the original datasheet (plus I
had put in a seventh Burroughs branded, not Ultronics, B-7971 that I have
long since forgotten where I got it from but I assume is used). Of course,
if I were to sell them (not planning on it), I have no real way to prove
the six are NOS. It is possible I paid $6 for used tubes but I have to
assume the seller was honest in that regard. It is possible the original
purchaser of these tubes was in the same boat. Acquired them from a seller
claiming they were NOS back in the 70's.

Regardless, I doubt there would be much price difference these days between
used and NOS. The prices are already quite high and the tubes last a long
time.

On Thursday, February 8, 2024 at 12:31:05 PM UTC-5 Michail Wilson wrote:

Absolutely not.

New were shipped in Styrofoam containers holding about 25 of them. There
were stored in old boxes of six according to the pictures.

These were in paper bags with handwriting on them. Also, new was never
sold with sockets which you can tell also had their ends soldered.

The date appears to be Jan 2nd, 2000 So, although they may have been in
storage since 2000, they were not new.

Michail Wilson

206-920-6312

*From:* xxx> *On Behalf Of *Robert
*Sent:* Thursday, February 8, 2024 4:35 AM
*To:* xxx
*Subject:* Re: [neonixie-l] B-7971 on ebay for $140

Do you think they were N.O.S.?

Rob

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Re: [neonixie-l] B-7971 on ebay for $140

2024-02-08 Thread Robert

Do you think they were N.O.S.?RobOn 7 Feb 2024, at 17:43, H. Carl Ott wrote:I just have a minor addiction to reddit and saw the thread earlier today. And looks like someone just scooped them all up. Backstory probably helped with the zero feedback. Good luck to whoever got them. carlHenry Carl Ott N2RVQ hcarl...@gmail.comOn Wed, Feb 7, 2024 at 12:36 PM Nicholas Stock wrote:Thanks Carl.My wife's nightmare is that I croak early and she's left with figuring out what to do with my hoard...Thanks for the plug Paul :)On Wed, Feb 7, 2024 at 9:28 AM H. Carl Ott wrote:Backstory:https://www.reddit.com/r/nixie/comments/1ako4k3/i_recently_inherited_two_boxes_of_burroughs_b7971/carl (no affiliation) Henry Carl Ott N2RVQ hcarl...@gmail.comOn Wed, Feb 7, 2024 at 11:47 AM Nicholas Stock wrote:That's a pretty reasonable price these days...On Wed, Feb 7, 2024 at 8:45 AM Michail Wilson wrote:

https://www.ebay.com/itm/315143518581
Not my auction. 0 feedback user, but has 10 available.
Michail

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[neonixie-l] Re: Happy New Year and a request..

2024-01-03 Thread Robert G. Schaffrath

A quick Google search shows some for sale. Running around USD$20. I myself 
have MM5311N for a clock a built in 1979. Picked up spares in 2004. 

On Tuesday, January 2, 2024 at 12:58:18 PM UTC-5 Nicholas Stock wrote:

> Fellow nixie nuts, a Happy New Year to you all, let's hope 2024 brings 
> good fortune to all, and more importantly, cheaper nixies (ha ha ha).
>
> I'm on the hunt for some MM5314N chips if anyone has any?
>
> Cheers,
>
> Nick
>

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[neonixie-l] Pandicon

2023-12-23 Thread Robert

What’s the rarest Pandicon, ZM1200, ZM1202, ZM1204 or ZM1206

I haven’t seen either ZM1202 or ZM1204 for sale


Rob

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Re: [neonixie-l] Re: Helping Nixie Tubes Fire in a Darkened Room

2023-12-01 Thread Robert G. Schaffrath

It would an interesting idea but the glass would block the ionizing 
radiation (alpha and probably most beta particles from daughter elements in 
the ore).

I have the same issue with B-7971's in a dark room. Unless I shine a 
flashlight at them, it takes them a bit of time to turn on from a cold 
start.

On Thursday, November 30, 2023 at 4:43:52 PM UTC-5 Nicholas Stock wrote:

May I suggest a small piece of uranium ore placed next to the clock?

LOL.

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[neonixie-l] Re: Shameless eBay listing plug

2023-11-23 Thread Robert G. Schaffrath

Memories! I have two of those Archer Nixie tubes still in the same 
packaging. I got them in the closeout bin when RadioShack stopped carrying 
them. The store crossed out the $2.29 in pen and wrote $.99. Back around 
1975 that was still a lot of money for a kid with a paper route but I got 
the last two.

On Monday, November 20, 2023 at 8:54:54 PM UTC-5 Nicholas Stock wrote:

> My listing..
>
> https://www.ebay.com/itm/276027909780
>
> Would sell to a member of the forum if interested for a lower cost 
> (reasonable offers please, these are at market already).
>
> Free shipping domestically. All the tubes have gas, most look NOS, 
> very clean, some in new boxes. Only selling as a complete lot I'm afraid.
>
> Send me an email if interested.
>
> Cheers,
>
> Nick
>

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[neonixie-l] "supercap" battery in MOD 6 Lumina clock

2023-10-08 Thread Robert

How long does this last before needing to be changed?


Rob

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[neonixie-l] Re: An Introduction,

2023-09-12 Thread Robert G. Schaffrath



On Tuesday, 12 September 2023 at 00:07:04 UTC+1 gregebert wrote:

I'm not a fan of multiplexing nixies because of the additional current that 
can lead to shorter lifespan.

 
Me neither as I can hear the whine of the vibrating segments in my old 
B-7971 clock I built in 1979 that is multiplexed. As for shortened life, I 
do not know what other manufacturers did but the Rodan GR-111pa tubes I 
have were designed to be multiplexed. The "a" variant were for multiplexed 
use and the non-"a" direct drive from what I understand from the spec 
sheet. The board I pulled my GR-111pa's from was definitely designed for 
multiplex operation as all the tube segments were wired in parallel with 
the anodes separate. They do work fine as direct drive tubes. I assume they 
have a more robust design to stand up to the demands of multiplexing.

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Re: [neonixie-l] Original Tube Prices

2023-09-03 Thread Robert G. Schaffrath

In 1979, Meshna was selling used pulls, without sockets, for $4 (inflation in 
the 1970’s was horrible then too). For $5, you could buy what they described as 
new unused tubes. I opted to spend $6 more for the six new ones. They are also 
branded Ultronics and still nicely individually wrapped in bubble wrap.

If I had to guess, they cleaned out an Ultronics repair depot of their stock. 
Somewhere there would have had to be replacement tubes on hand to service the 
displays. 


Яoßəят

> On Sep 3, 2023, at 12:58 PM, jf0303...@gmail.com wrote:
> 
> Based on an ad in the May 1`973 Radio-Electronics, Meshna was selling them 
> for $2.50 for a pair of tubes with sockets and driver board with HV 
> transistors, or $1.25 per tube/socket/ckt board combo.  These were clearly 
> pulls from the recently decommissioned NYSE stock tickers, so they probably 
> had already seen over 10k hours of service instead of being NOS.
> 
> On Saturday, September 2, 2023 at 6:12:57 AM UTC-7 Robert G. Schaffrath wrote:
> When B-7971's appear on eBay, they tend to sell for around $175-$200 each. 
> Not that big a markup over the original price when inflation is taken into 
> account. Of course most of the tubes being sold are used but still, factoring 
> in 53 years of time for something no longer made, the markup is not that big. 
> I am guessing that Ultronics was paying the $9.50/each ($76.83 - 2023) price 
> for the quantities they were working with.
> 
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Re: [neonixie-l] Original Tube Prices

2023-09-03 Thread Robert Norman

B7971 - I’ve only seen the early “Pin type” ones and the later “circuit board” type, what is the other one?RobOn 3 Sep 2023, at 12:44, Robert G. Schaffrath wrote:The only reasons that I can think of are 1) the B-8971 is tinier and might have been more complicated to manufacture. 2) Ultronics having ordered thousands of the B-7971's resulted in efficiency improvements in manufacturing the B-7971 such that the price came down.Off the top of my head I am aware of three variants of the B-7971 internals. Most likely those changes came about from making so many of them they found ways to improve the manufacturing process. It is possible that B-8971's never benefited from any manufacturing improvements or design changes due to the small number of them that appear to have been made.RobertOn Saturday, September 2, 2023 at 11:58:32 AM UTC-4 Robert wrote:Interesting that the B 8971 is much more expensive than the B7971, was this used in any commercial products ?ThanksRobOn 2 Sep 2023, at 14:13, Robert G. Schaffrath <> wrote:The B-7971 is an interesting study. It is listed at $15.85 in single quantities, which is still worse than the $5/each I paid for NOS surplus from Meshna in 1979. However, running that number through the inflation calculator for January 1970 to July 2023 and I get $128.18 (which is shocking to see how much our money has been devalued all these years).When B-7971's appear on eBay, they tend to sell for around $175-$200 each. Not that big a markup over the original price when inflation is taken into account. Of course most of the tubes being sold are used but still, factoring in 53 years of time for something no longer made, the markup is not that big. I am guessing that Ultronics was paying the $9.50/each ($76.83 - 2023) price for the quantities they were working with.On Friday, September 1, 2023 at 3:45:14 AM UTC-4 Audrey wrote:Oh. It didn't attach.On Thu, Aug 31, 2023, 10:13 PM Audrey <> wrote:My understanding is that the prices dropped a lot as time went on, here's another price catalog from 1970 that mentions most of the same tubes for much cheaper, with B-5750 types just $4@1000pcs - roughly $25/pc now.On Thu, Aug 31, 2023, 10:02 PM LB <> wrote:Hi all,Out of curiosity, I took a look at some old Burroughs nixie tube price lists, and took the prices (1-99 pcs) to an inflation calculator (1963->2023). Here are some highlights:B-4991 (Miniature, $68.00) -> $677.10B-7094 (Jumbo, $45.00) -> $448.08B-4032 (Miniature, $33.00) -> $328.59B-5971 (13 Segments, $16.75) -> $166.796844-A (Standard, $11.00) -> $109.53B-9012 (Pixie, $5.00) -> $49.79I know that these tubes were made pretty much exclusively for military/non-consumer applications, but it's still interesting to see just how expensive nixies were in reasonable quantities.

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Re: [neonixie-l] Original Tube Prices

2023-09-03 Thread Robert G. Schaffrath

The only reasons that I can think of are 1) the B-8971 is tinier and might
have been more complicated to manufacture. 2) Ultronics having ordered
thousands of the B-7971's resulted in efficiency improvements in
manufacturing the B-7971 such that the price came down.

Off the top of my head I am aware of three variants of the B-7971
internals. Most likely those changes came about from making so many of them
they found ways to improve the manufacturing process. It is possible that
B-8971's never benefited from any manufacturing improvements or design
changes due to the small number of them that appear to have been made.

Robert

On Saturday, September 2, 2023 at 11:58:32 AM UTC-4 Robert wrote:

Interesting that the B 8971 is much more expensive than the B7971, was this
used in any commercial products ?

Thanks
Rob

On 2 Sep 2023, at 14:13, Robert G. Schaffrath <> wrote:

The B-7971 is an interesting study. It is listed at $15.85 in single
quantities, which is still worse than the $5/each I paid for NOS surplus
from Meshna in 1979. However, running that number through the inflation
calculator for January 1970 to July 2023 and I get $128.18 (which is
shocking to see how much our money has been devalued all these years).

When B-7971's appear on eBay, they tend to sell for around $175-$200 each.
Not that big a markup over the original price when inflation is taken into
account. Of course most of the tubes being sold are used but still,
factoring in 53 years of time for something no longer made, the markup is
not that big. I am guessing that Ultronics was paying the $9.50/each
($76.83 - 2023) price for the quantities they were working with.

On Friday, September 1, 2023 at 3:45:14 AM UTC-4 Audrey wrote:

Oh. It didn't attach.

On Thu, Aug 31, 2023, 10:13 PM Audrey <> wrote:

My understanding is that the prices dropped a lot as time went on, here's
another price catalog from 1970 that mentions most of the same tubes for
much cheaper, with B-5750 types just $4@1000pcs - roughly $25/pc now.

On Thu, Aug 31, 2023, 10:02 PM LB <> wrote:

Hi all,

Out of curiosity, I took a look at some old Burroughs nixie tube price
lists, and took the prices (1-99 pcs) to an inflation calculator
(1963->2023). Here are some highlights:

B-4991 (Miniature, $68.00) -> $677.10
B-7094 (Jumbo, $45.00) -> $448.08
B-4032 (Miniature, $33.00) -> $328.59
B-5971 (13 Segments, $16.75) -> $166.79
6844-A (Standard, $11.00) -> $109.53
B-9012 (Pixie, $5.00) -> $49.79

I know that these tubes were made pretty much exclusively for
military/non-consumer applications, but it's still interesting to see just
how expensive nixies were in reasonable quantities.

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Re: [neonixie-l] Original Tube Prices

2023-09-02 Thread Robert

Interesting that the B 8971 is much more expensive than the B7971, was this used in any commercial products ?ThanksRobOn 2 Sep 2023, at 14:13, Robert G. Schaffrath wrote:The B-7971 is an interesting study. It is listed at $15.85 in single quantities, which is still worse than the $5/each I paid for NOS surplus from Meshna in 1979. However, running that number through the inflation calculator for January 1970 to July 2023 and I get $128.18 (which is shocking to see how much our money has been devalued all these years).When B-7971's appear on eBay, they tend to sell for around $175-$200 each. Not that big a markup over the original price when inflation is taken into account. Of course most of the tubes being sold are used but still, factoring in 53 years of time for something no longer made, the markup is not that big. I am guessing that Ultronics was paying the $9.50/each ($76.83 - 2023) price for the quantities they were working with.On Friday, September 1, 2023 at 3:45:14 AM UTC-4 Audrey wrote:Oh. It didn't attach.On Thu, Aug 31, 2023, 10:13 PM Audrey <tntm...@gmail.com> wrote:My understanding is that the prices dropped a lot as time went on, here's another price catalog from 1970 that mentions most of the same tubes for much cheaper, with B-5750 types just $4@1000pcs - roughly $25/pc now.On Thu, Aug 31, 2023, 10:02 PM LB <liambart...@gmail.com> wrote:Hi all,Out of curiosity, I took a look at some old Burroughs nixie tube price lists, and took the prices (1-99 pcs) to an inflation calculator (1963->2023). Here are some highlights:B-4991 (Miniature, $68.00) -> $677.10B-7094 (Jumbo, $45.00) -> $448.08B-4032 (Miniature, $33.00) -> $328.59B-5971 (13 Segments, $16.75) -> $166.796844-A (Standard, $11.00) -> $109.53B-9012 (Pixie, $5.00) -> $49.79I know that these tubes were made pretty much exclusively for military/non-consumer applications, but it's still interesting to see just how expensive nixies were in reasonable quantities.

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Re: [neonixie-l] Original Tube Prices

2023-09-02 Thread Robert G. Schaffrath

The B-7971 is an interesting study. It is listed at $15.85 in single 
quantities, which is still worse than the $5/each I paid for NOS surplus 
from Meshna in 1979. However, running that number through the inflation 
calculator for January 1970 to July 2023 and I get $128.18 (which is 
shocking to see how much our money has been devalued all these years).

When B-7971's appear on eBay, they tend to sell for around $175-$200 each. 
Not that big a markup over the original price when inflation is taken into 
account. Of course most of the tubes being sold are used but still, 
factoring in 53 years of time for something no longer made, the markup is 
not that big. I am guessing that Ultronics was paying the $9.50/each 
($76.83 - 2023) price for the quantities they were working with.

On Friday, September 1, 2023 at 3:45:14 AM UTC-4 Audrey wrote:

> Oh. It didn't attach.
>
> On Thu, Aug 31, 2023, 10:13 PM Audrey  wrote:
>
>> My understanding is that the prices dropped a lot as time went on, here's 
>> another price catalog from 1970 that mentions most of the same tubes for 
>> much cheaper, with B-5750 types just $4@1000pcs - roughly $25/pc now.
>>
>> On Thu, Aug 31, 2023, 10:02 PM LB  wrote:
>>
>>> Hi all,
>>>
>>> Out of curiosity, I took a look at some old Burroughs nixie tube price 
>>> lists, and took the prices (1-99 pcs) to an inflation calculator 
>>> (1963->2023). Here are some highlights:
>>>
>>> B-4991 (Miniature, $68.00) -> $677.10
>>> B-7094 (Jumbo, $45.00) -> $448.08
>>> B-4032 (Miniature, $33.00) -> $328.59
>>> B-5971 (13 Segments, $16.75) -> $166.79
>>> 6844-A (Standard, $11.00) -> $109.53
>>> B-9012 (Pixie, $5.00) -> $49.79
>>>
>>> I know that these tubes were made pretty much exclusively for 
>>> military/non-consumer applications, but it's still interesting to see just 
>>> how expensive nixies were in reasonable quantities.
>>>
>>> -- 
>>> You received this message because you are subscribed to the Google 
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>>>  
>>> 
>>> .
>>>
>>

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Re: [neonixie-l] B7971 - better contrast

2023-07-08 Thread Robert

I’ve seen 12 of these tubes and two have had the top pin antenna ThanksRobOn 6 Jul 2023, at 16:20, Michail Wilson  wrote:







Same here.
I have 5x MOD_6 clocks (various versions).  2 with ‘antenna’ tubes. I notice no difference; however, I pride myself on having the antenna tubes.  Maybe it was just me, but having had hundreds (if not a thousand) of B7971 tubes, I have only
 run across the 13 antenna tubes  (yes, only 1 spare).
 

Michail 

 


From: neonixie-l@googlegroups.com 
On Behalf Of Nicholas Stock
Sent: Thursday, July 6, 2023 11:14 AM
To: neonixie-l@googlegroups.com
Subject: Re: [neonixie-l] B7971 - better contrast


 
I have a MOD_6 with pin-top tubes in them. Absolutely no visual difference to the non-pin ones when compared side by side.

 


Jeff, you should have bought more when you could 



 


I still rue the day when I thought a box of 100 IN14's at $99 was expensive.


 


Nick

Sent from my iPhone






On Jul 6, 2023, at 07:34, Robert G. Schaffrath <robert.schaffr...@gmail.com> wrote:




I have one of the pin top tubes (https://n2jtx.com/NixieClock/Used%20Burroughs%20B-7971.jpg). Unlike most of my other tubes, it is a
 Burroughs branded tube and not Ultronics. The only thing I ever noticed different about it was it seemed to have a deeper red glow than the Ultronics tubes which are more orange. Perhaps a different amount of mercury in it. Someday when I think about it I'll
 test it again.


On Wednesday, July 5, 2023 at 3:50:55 AM UTC-4 Jeff Walton wrote:




I have a number of these "rare pin-top" B-7971's and do not find any significant difference in contrast with the Ultronics versions of the 7971s .  The pin-topped or "antenna top" construction is an early format that uses a wired backplane
 instead of the PCB style interconnect.  It's a nice tube that looks good as a group in any clock.  There is no practical difference in operation  or appearance and there are certainly some MOD-6 clock owners that have full sets of these tubes in operation
 will tell you that they are equally reliable.   They will have date codes in the mid-1960s. 


 


It is uncommon to see a group like this available.   $250 to $275 each per tube seems to be the going price on ebay these days.  Overpriced but worth whatever someone is willing to pay.  


 


My first tubes were $8/pair from Buckbee-Mears and Polypaks back in the early 1970's and included the boards with each pair.  


 


Jeff 




 


 Original message 


From: Robert <robnor...@gmail.com>



Date: 7/5/23 2:11 AM (GMT-06:00) 



To: neoni...@googlegroups.com



Subject: [neonixie-l] B7971 - better contrast



 

Not my auction but I saw this https://www.ebay.co.uk/itm/266322565516?mkcid=16=1=711-127632-2357-0=v3sg3SvYRJa=4429486=U1YeAcPgQ5y=_ver=artemis=COPY

 


In the description it says “This sale is for lots of "Pin-Top" version of the B-7971. The rare "Pin-Top" versions are made with a darker background on the segments
 that provide better contrast.”


 


I have some of these but have never noticed this


 


Rob





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Re: [neonixie-l] B7971 - better contrast

2023-07-06 Thread Robert G. Schaffrath

I have one of the pin top tubes 
(https://n2jtx.com/NixieClock/Used%20Burroughs%20B-7971.jpg). Unlike most 
of my other tubes, it is a Burroughs branded tube and not Ultronics. The 
only thing I ever noticed different about it was it seemed to have a deeper 
red glow than the Ultronics tubes which are more orange. Perhaps a 
different amount of mercury in it. Someday when I think about it I'll test 
it again.

On Wednesday, July 5, 2023 at 3:50:55 AM UTC-4 Jeff Walton wrote:

> I have a number of these "rare pin-top" B-7971's and do not find any 
> significant difference in contrast with the Ultronics versions of the 7971s 
> .  The pin-topped or "antenna top" construction is an early format that 
> uses a wired backplane instead of the PCB style interconnect.  It's a nice 
> tube that looks good as a group in any clock.  There is no practical 
> difference in operation  or appearance and there are certainly some MOD-6 
> clock owners that have full sets of these tubes in operation will tell you 
> that they are equally reliable.   They will have date codes in the 
> mid-1960s. 
>
> It is uncommon to see a group like this available.   $250 to $275 each per 
> tube seems to be the going price on ebay these days.  Overpriced but worth 
> whatever someone is willing to pay.  
>
> My first tubes were $8/pair from Buckbee-Mears and Polypaks back in the 
> early 1970's and included the boards with each pair.  
>
> Jeff 
>
>  Original message 
> From: Robert  
> Date: 7/5/23 2:11 AM (GMT-06:00) 
> To: neoni...@googlegroups.com 
> Subject: [neonixie-l] B7971 - better contrast 
>
> Not my auction but I saw this 
> https://www.ebay.co.uk/itm/266322565516?mkcid=16=1=711-127632-2357-0=v3sg3SvYRJa=4429486=U1YeAcPgQ5y=_ver=artemis=COPY
>
> In the description it says “This sale is for lots of "Pin-Top" version of 
> the B-7971. The rare "Pin-Top" versions are made with a darker background 
> on the segments that provide better contrast.”
>
> I have some of these but have never noticed this
>
>
> Rob
>
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> "neonixie-l" group.
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> <https://groups.google.com/d/msgid/neonixie-l/A272F92E-A09A-48E8-A051-2C15C292A57F%40gmail.com?utm_medium=email_source=footer>
> .
>

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[neonixie-l] B7971 - better contrast

2023-07-05 Thread Robert

Not my auction but I saw this 
https://www.ebay.co.uk/itm/266322565516?mkcid=16=1=711-127632-2357-0=v3sg3SvYRJa=4429486=U1YeAcPgQ5y=_ver=artemis=COPY

In the description it says “This sale is for lots of "Pin-Top" version of the 
B-7971. The rare "Pin-Top" versions are made with a darker background on the 
segments that provide better contrast.”

I have some of these but have never noticed this


Rob

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Re: [neonixie-l] Spark arrestors?

2023-06-27 Thread Robert G. Schaffrath

When I saw this subject I was thinking of the Visoglow Neon Lightning 
Arrester that I bought NIB from Fair Radio Sales over 40 years ago. Never 
used it and only bought it for the novelty of a three terminal neon bulb in 
it. Found a picture of it online 
at 
https://www.picclickimg.com/DGgAAOSwC2ZkNzwb/RARE-Vtg-Neon-Gas-Radio-Lightning-Arrestor-Brach.webp.

On Monday, June 26, 2023 at 4:56:06 PM UTC-4 Nick Andrews wrote:

> Am I reading that right, <5.5MBq in each tube?  I have a couple of old 
> spark gap tubes with Cs-137 in them used to calibrate isotope identifiers I 
> have but being WWII vintage, likely not a uniform amount in each tube was 
> used.  A pint spot on inside of the glass, but gas is likely easier to fill 
> more uniformly piece to piece.
>
> On Sat, Jun 24, 2023 at 11:56 PM Mac Doktor  wrote:
>
>>
>> On Jun 25, 2023, at 12:21 AM, Nick Andrews  wrote:
>>
>> Interesting.   Bigger ones used in what?  I have a box somewhere with old 
>> railroad lightning assessors.  
>>
>>
>> I was looking at these: 
>> https://www.aliexpress.us/item/3256804108987619.html
>>
>>
>> Terry Bowman, KA4HJH
>> "The Mac Doctor"
>>
>> https://www.astarcloseup.com
>>
>> "Every kid starts out as a natural-born scientist, and then we beat it 
>> out of them. A few trickle through the system with their wonder and 
>> enthusiasm for science intact."—Carl Sagan, *Psychology Today*, 1996
>>
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>>  
>> 
>> .
>>
>

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[neonixie-l] Dalibor H tubes

2023-06-17 Thread Robert

Did anyone here buy the two prototype tubes Dalibor had for sale?

Rob

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[neonixie-l] Is this the earliest date code for a B7971, 6351?

2023-06-06 Thread Robert




Rob

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Re: [neonixie-l] Date codes on ETL GR10x tubes...

2023-05-30 Thread Robert

HiWhat would the cost be per tube, used or NIB?ThanksRobOn 30 May 2023, at 17:40, 'Nick' via neonixie-l wrote:So here's the thing: I'm rationalising my rather large nixie collection over the next few months I don't need lots of every nixie.I'm starting with a stash of ETL GR10Gs in varying condition - one has a broken 7 internally, 3 others are "dark" to the point of ... just useable... another 10 are in "used but good to OK condition" and the rest are NIB.They're a strange, early, tube, needing a Va of 250VDC and an Ra of only 10K for most digits, but 18K2 for the "1" and 14K7 for the "7", i.e. the 1 & 7 also have cathode resistors... They have no Hg doping, so the life of the tube under controlled circumstances is only 5,000 hours... Early stuff.But they are a BEAUTIFUL tube... I mean, REALLY BEAUTIFUL (IMHO)...The date codes on them are just two characters, e.g. "OJ" or "RC" etc. Range of ETL logos too...Anyone have a decode table for these?ThanksNick

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[neonixie-l] Re: Seriously? This is out of control on ebay

2023-05-19 Thread Robert G. Schaffrath

If this sells then I have a defective B7971 I would put up too. At least 
mine still lights up. A few segments do not work but at least it does not 
have a hole in the glass LOL.

On Thursday, May 18, 2023 at 10:34:41 AM UTC-4 Nick Andrews wrote:

https://www.ebay.com/itm/185902284039?mkevt=1=0=e11021.m43.l3160=7=osgood=b10ab9f3379946c388664ea9b51afe3c=43189870757=RU=0=0=-1%7E1=20230518011652=11021

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Re: [neonixie-l] I won't be buying this...

2023-05-06 Thread Robert

Not me, I already have one with the original packaging ThanksRobOn 6 May 2023, at 16:12, Terry S  wrote:But I bet someone here will. Original Karlsson Cock.https://www.ebay.com/itm/275836506107?hash=item4039230ffb:g:rbgAAOSw7INkVU~L=enc%3AAQAI8IKaQVkrNiLoMj6X1aKdSz1%2BLcCSVxaj5qunzQZ75BlNgB3tQtavcNTvF%2F8LSAz9zLns%2BKHqiex7KO6JMG2IoMkKeHWqk21MWHpAo35Ixb%2FA2jLhtKeA%2BaLWTXWR3RBkIu4GpqOPphPP%2FT4RmcFuC%2BvFctEs8%2B7CWurCA78CtJEShNXrDqLNZu50v%2FHaSH9Q%2BB8StnbPZx6r8D3AGEaOgMOsSIxtkPsYNULmBqjU7qz3QHkVni%2Bg4vGda5pioz7mSh2xRojnC0Aq5KPY0U9l47Kph668a2lhrfl5e5A36OLYIAevOyhA3onv31BCUIrOSQ%3D%3D%7Ctkp%3ABk9SR8iz4pn-YQ



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Re: [neonixie-l] ‘Burn’ marks on rear of B-7971 tubes

2023-04-25 Thread Robert

Third type of construction, this one is from 1964RobOn 25 Apr 2023, at 12:52, H. Carl Ott  wrote:I've seen one tube where the segments disintegrated to the point where pieces broke loose and shorted other segments. I have no idea how much current it took to do that,  or even what caused it to happen. But I don't remember any burn marks on the mica. Will have to dig it out of storage and look again.  carlHenry Carl Ott   N2RVQ    hcarl...@gmail.comOn Tue, Apr 25, 2023 at 5:12 AM Robert <robnorman...@gmail.com> wrote:Already using 6 in the Mod 6 Lumina RobOn 25 Apr 2023, at 08:50, Dekatron42 <martin.forsb...@gmail.com> wrote:The only "burnt out" ones that I've seen was from a few that I bought from a German seller on eBay where he had over driven them with too many segments lit at the same time so that the thin anode strip from the pin to the anode had burned through completely making the tubes utterly unusable. I am not sure how you could put that much current through the anode under any normal condition but that was what he told me he had done - don't know if that was by accident or from poor design./MartinOn Tuesday, 25 April 2023 at 01:18:49 UTC+2 Jeff Walton wrote:Construction examples:On Monday, April 24, 2023 at 6:13:48 PM UTC-5 Jeff Walton wrote:I have a few of the mica-backed variety of 7971 tubes that do not show burns around the mica by connections.  They don't seem to test any differently than the tubes that do show the markings.  Most have the burn marks but none have ever failed in years of use.  The earlier versions with wire backplates do not have these markings.  They all seem to be super reliable and can even withstand the hard shock to dislodge the shorted adjacent corner segments, which sometimes happens in shipping.  I've seen some cathode poisoning on the underscore carets, but no other issues.  I'm not sure that the "burn" marks are anything other than a manufacturing caused discoloration.  The 7971 seems to be super reliable. On Monday, April 24, 2023 at 5:30:41 PM UTC-5 gregebert wrote:I've only seen 2 types of functional failures in 7971'sOne completely-dead segment (A gift to me; that's how I got started with 7971's)Adjacent segments shorted together (it just happened one-day on my 8-tube clock w/o warning; very peculiar)I have one exhibit-only device with a crack in the base, but that's from mishandling. The same tube has two black spots on the mica right next to rivets, and I dont know what to conclude from that.They are pretty rugged, especially considering their massive size  /mechanical complexity, and versatile because you can display numerals, text, and a few special characters. That said, they are butt-ugly and getting expensive.With 9 tubes that all work, you're in great shape to build a 6-tube clock and have spares.On Monday, April 24, 2023 at 2:23:53 PM UTC-7 Nicholas Stock wrote:I have a variety of B7971's with different micas, 'burn' marks, pins in the top of the envelope etc etc. I have yet to have a tube fail on me in day to day use after many years. I don't think it's an indication of any life expectancy for these tubes they appear to be built like tanks.Now that I have said that, I await the inundation of messages talking about B7971 failures.. LOLCheers,NickOn Mon, Apr 24, 2023 at 10:42 AM Robert Norman <robnor...@gmail.com> wrote:I have 9 tubes, 5 show no sign of any marks, 2 show marks on a couple of the connections and 2 show more extensive marks, all work perfectly.

Are the ones with marks more likely to have a shorter life?

Rob

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Re: [neonixie-l] ‘Burn’ marks on rear of B-7971 tubes

2023-04-25 Thread Robert

Already using 6 in the Mod 6 Lumina RobOn 25 Apr 2023, at 08:50, Dekatron42  wrote:The only "burnt out" ones that I've seen was from a few that I bought from a German seller on eBay where he had over driven them with too many segments lit at the same time so that the thin anode strip from the pin to the anode had burned through completely making the tubes utterly unusable. I am not sure how you could put that much current through the anode under any normal condition but that was what he told me he had done - don't know if that was by accident or from poor design./MartinOn Tuesday, 25 April 2023 at 01:18:49 UTC+2 Jeff Walton wrote:Construction examples:On Monday, April 24, 2023 at 6:13:48 PM UTC-5 Jeff Walton wrote:I have a few of the mica-backed variety of 7971 tubes that do not show burns around the mica by connections.  They don't seem to test any differently than the tubes that do show the markings.  Most have the burn marks but none have ever failed in years of use.  The earlier versions with wire backplates do not have these markings.  They all seem to be super reliable and can even withstand the hard shock to dislodge the shorted adjacent corner segments, which sometimes happens in shipping.  I've seen some cathode poisoning on the underscore carets, but no other issues.  I'm not sure that the "burn" marks are anything other than a manufacturing caused discoloration.  The 7971 seems to be super reliable. On Monday, April 24, 2023 at 5:30:41 PM UTC-5 gregebert wrote:I've only seen 2 types of functional failures in 7971'sOne completely-dead segment (A gift to me; that's how I got started with 7971's)Adjacent segments shorted together (it just happened one-day on my 8-tube clock w/o warning; very peculiar)I have one exhibit-only device with a crack in the base, but that's from mishandling. The same tube has two black spots on the mica right next to rivets, and I dont know what to conclude from that.They are pretty rugged, especially considering their massive size  /mechanical complexity, and versatile because you can display numerals, text, and a few special characters. That said, they are butt-ugly and getting expensive.With 9 tubes that all work, you're in great shape to build a 6-tube clock and have spares.On Monday, April 24, 2023 at 2:23:53 PM UTC-7 Nicholas Stock wrote:I have a variety of B7971's with different micas, 'burn' marks, pins in the top of the envelope etc etc. I have yet to have a tube fail on me in day to day use after many years. I don't think it's an indication of any life expectancy for these tubes they appear to be built like tanks.Now that I have said that, I await the inundation of messages talking about B7971 failures.. LOLCheers,NickOn Mon, Apr 24, 2023 at 10:42 AM Robert Norman <robnor...@gmail.com> wrote:I have 9 tubes, 5 show no sign of any marks, 2 show marks on a couple of the connections and 2 show more extensive marks, all work perfectly.

Are the ones with marks more likely to have a shorter life?

Rob

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[neonixie-l] ‘Burn’ marks on rear of B-7971 tubes

2023-04-24 Thread Robert Norman

I have 9 tubes, 5 show no sign of any marks, 2 show marks on a couple of the 
connections and 2 show more extensive marks, all work perfectly.

Are the ones with marks more likely to have a shorter life?

Rob

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Re: [neonixie-l] Re: Neonixie Spam Messages

2023-04-08 Thread Robert G. Schaffrath

I don't think it is just Group but with Google overall. I use Gmail and I 
noticed a large uptick in legitimate messages appearing in the SPAM folder. 
I used to have to check it once every two days or so but now it is flagging 
many things I consider innocuous. As some others posts have noted, there is 
an election coming up...

On Friday, April 7, 2023 at 4:16:28 AM UTC-4 Grahame wrote:

> Hi
>
> Just the one pending this morning..
>
> No overly eager moderator - my memory is that we have deleted 4 posts in 
> the last couple of years - two from a Russian tube seller seeking to bypass 
> sanctions and two from someone advertising gold.
>
> As Nick said, there doesn't appear to be any moderator controls on spam 
> delete/pending so we are just going to have to live with this problem for 
> now. I appears there are two levels of control by google - one is they 
> delete the message outright - the second is it goes into a pending folder 
> for the moderators to approve.
>
> I will watch the post contents more closely and see if there is a reason 
> why posts are being moved to pending.
>
> Grahame (and Nick and Nick)
> On 07/04/2023 04:52, Terry S wrote:
>
> Welcome to Google's new AI system. But don't worry, AI is harmless.
>
> On Thursday, April 6, 2023 at 1:08:53 PM UTC-5 Moses wrote:
>
>> Grahame, 
>>
>> Last several months some of my posts are just deleted.. I started the 
>> habit of copy pasting them to notepad before posting because of this. You 
>> can see this in several threads.. a message is replaced by "Message has 
>> been deleted"
>> It's not just me either, as I've had folks sent me an email direct about 
>> a topic and stating that their posted messages were deleted as well.
>>
>> I can't figure it out, as I have reposted the same message the next day 
>> and it is fine. I just figured it was an overly active moderator, computer 
>> or otherwise. Either way, a bit annoying, especially when you don't know 
>> what triggered it.
>>
>> Regards,
>> -Moses
>>
>> On Thursday, April 6, 2023 at 6:49:42 AM UTC-7 Grahame wrote:
>>
>>> Hi All 
>>>
>>> For some reason Google is identifying a lot more messages as spam and 
>>> putting them in the moderator's pending folder. We might have one or two 
>>> a month but more recently it can be several a day. I just released three 
>>> messages from yesterday. Another odd thing, is that at least one message 
>>> that had been pending came through by email to me, the selection I have 
>>> set for myself, but then it doesn't appear in the thread on the group 
>>> webpage. 
>>>
>>> I am trying to remember to look at the pending folder everyday to 
>>> release held messages. Please PM me if you are seeing a problem with any 
>>> particular posting. 
>>>
>>> Grahame (and Nick and Nick) 
>>>
>>> Moderators 
>>>
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>  
> 
> .
>
>

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Re: [neonixie-l] New Features for the MOD-SIX- LUMINA!!

2023-03-18 Thread Robert

Any news on this update?RobOn 6 Mar 2023, at 04:17, Terry Kennedy wrote:Code space is so tight in the older ATmega-based CPUs that the PS/2 serial driver had to be removed in the 9.xx firmware to fit in other requested features.Having said that, there is an intersection of what's doable / customers request / price sensitivity. We've looked briefly at combinations of old and new parts. As you may recall, in the older clocks the boards were mostly interchangeable, other than differing case cutouts by the CPU and rounded/square corners on the PSU. I can tell you that the new CPU is not a drop-in replacement (so if you have a Lumina and a "legacy" clock, don't try it). On Sunday, March 5, 2023 at 4:55:30 PM UTC-5 Nicholas Stock wrote:Any of those new features going to trickle down to older clocks Michael? I like some of those transitions and the scrolling words are nice.On Sun, Mar 5, 2023 at 1:51 PM MichaelB wrote:https://www.youtube.com/watch?v=_uNSZcMVDH0

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[neonixie-l] B7971

2023-03-03 Thread Robert

Has anyone bought from this seller?RARE Pair of Vintage Burroughs B-7971 B7971 Nixie Tubes w/ Lectrascan Driver PCBebay.co.ukThanksRob



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[neonixie-l] Single B7971 for sale?

2023-02-07 Thread Robert

Has anyone got a single tube they would be willing to part with, I’m in the UK

Thanks
Rob

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[neonixie-l] Re: Expensive?

2023-02-05 Thread Robert G. Schaffrath

That is the exact same thing amateur radio operators need to their wives as 
well!

On Sunday, February 5, 2023 at 12:07:43 AM UTC-5 petehand wrote:

> I've told my wife, when I'm gone, under no circumstances sell my nixie 
> junk for what I told you I paid for it!
>
>
>

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[neonixie-l] Lectrascan

2023-01-28 Thread Robert

Where is the best place for detailed info on this

Rob

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[neonixie-l] Re: nixie sighting - On soviet IL76 aircraft

2023-01-28 Thread Robert G. Schaffrath

Several years ago when I got back into Nixie clocks, I took a few to church 
with me to show a friend. A few of our members are either still active or 
retired from the airlines (Pan Am, Delta, Jet Blue). One member who worked 
for Pan Am and retired from Delta on the ground crew at JFK saw my IN-12 
clock and mentioned he saw those often on the Russian planes. Even 
remembered the inverted  "2".

On Tuesday, January 24, 2023 at 9:55:12 AM UTC-5 coggs wrote:

> [image: sovietnixiegps.png]
> From this youtube video https://youtu.be/yInZQ3z8H1s?t=212
>

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[neonixie-l] Re: Expensive?

2023-01-23 Thread Robert G. Schaffrath

Wow! I still have one of those boards, with sockets, and can populate it 
with two NOS tubes. To think those complete assemblies used to sell for 
USD$5 or less in the 1970's. Of course 10 years from now, this might look 
like a bargain. I am amazed that B7971's are now in the $200 range (and 
climbing). In my box of NOS spares, I have left a note to whomever may find 
it someday, if I should suddenly depart, to verify the value of them before 
deciding to toss the box. At the time I wrote the note they were going for 
around USD$175.

Robert

On Sunday, January 22, 2023 at 5:36:33 AM UTC-5 Robert wrote:

> Not my listing
>
> [image: s-l400.jpg]
>
> RARE Pair of Vintage Burroughs B-7971 B7971 Nixie Tubes w/ Lectrascan 
> Driver PCB 
> <https://www.ebay.co.uk/itm/285116362890?mkcid=16=1=711-127632-2357-0=rjMgb2C3T5y=2349624=U1YeAcPgQ5y=_ver=artemis=COPY>
> ebay.co.uk 
> <https://www.ebay.co.uk/itm/285116362890?mkcid=16=1=711-127632-2357-0=rjMgb2C3T5y=2349624=U1YeAcPgQ5y=_ver=artemis=COPY>
>
> <https://www.ebay.co.uk/itm/285116362890?mkcid=16=1=711-127632-2357-0=rjMgb2C3T5y=2349624=U1YeAcPgQ5y=_ver=artemis=COPY>
>
>
>
> Rob
>

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[neonixie-l] Expensive?

2023-01-22 Thread Robert

Not my listingRARE Pair of Vintage Burroughs B-7971 B7971 Nixie Tubes w/ Lectrascan Driver PCBebay.co.ukRob



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[neonixie-l] Why Nixies came before Numitrons

2022-12-25 Thread Robert

I would have thought the Numitron would have been invented before the Nixie


Rob

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Re: [neonixie-l] Re: Green Nixie tube?

2022-12-25 Thread Robert G. Schaffrath

My late father was a Professor of Chemistry. He had a collection of spectra 
tubes of the various elemental gases. I added chlorine and mercury to that 
collection many years later after he had passed when I found a good deal 
online for those tubes. At one time, I took pictures of those tubes 
operating and posted the pictures at http://www.schaffrath.net/Spectra/ 
(the two bottom photos are different because I added those later when I got 
the last two tubes). From the pictures, mercury seems to be the closest in 
color to that tube. The only problem though is, in my experience, the 
mercury tends to condense when the tube is not in use and it takes a short 
period of time for it to heat up, vaporize and reach full intensity. If you 
ever see videos of mercury arc rectifiers, there is a warmup period before 
they get going. Same with the old mercury vapor street lights from decades 
ago before sodium became prevalent.

On Saturday, December 24, 2022 at 5:27:06 PM UTC-5 LB wrote:

> It’s hard to tell, I’ve never seen a gas that emits that color. Maybe it’s 
> a mix of argon and mercury?
>
> On Dec 24, 2022, at 3:17 AM, Audrey  wrote:
>
> 
>
> I don't think there is.
>
> On Sat, Dec 24, 2022, 6:04 AM Tidak Ada  wrote:
>
>> There is clearly a green filter visible over the tube
>>
>>  
>>
>> eric
>>
>>  
>>
>> *Van:* neoni...@googlegroups.com [mailto:neoni...@googlegroups.com] *Namens 
>> *Audrey
>> *Verzonden:* zaterdag 24 december 2022 7:49
>> *Aan:* neoni...@googlegroups.com
>> *Onderwerp:* Re: [neonixie-l] Re: Green Nixie tube?
>>
>>  
>>
>> https://youtu.be/gDcF8hJdrpw
>>
>>  
>>
>> On Fri, Dec 23, 2022, 11:14 PM Jasper nagle  wrote:
>>
>> the closet to a green nixie tube is a *thyratron display tube * 
>> https://www.ebay.com/itm/224938767987?hash=item345f653673:g:lXEAAOSwDzFiWSpa=enc%3AAQAHkCbHe5IVLZ3Ws2LeT1cVeZzER6Yq6CfrxU9OsDZwyzv%2FvdaWvmJyeSMXJ%2FBsd%2BWzNW1uc7wIKWatEQ2nzRTf6D0nt148FB6riCPXb5BM4C0EYcCirsBmZ6nPZ7Q1OLIOyi96ZOqw7cs%2F4lvNle6ojUGesmCCeHc0mcqolEIgZDcitYCA38vT%2BiON4maGcDqpnQ%3D%3D%7Ctkp%3ABk9SR5TKrKWoYQ
>>
>> On Saturday, December 24, 2022 at 3:53:48 AM UTC milesan...@gmail.com 
>> wrote:
>>
>> Good day, everyone.
>>
>>  
>>
>> I'm wondering, do green Nixie digital display tubes exist? From what I 
>> understand, the color of the discharge depends on the vacuum and type of 
>> gas but I've not seen any images showcasing one with a green color. Is 
>> there such a thing?
>>
>> -- 
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>>  
>> 
>> .
>>
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>> 
>> .
>>
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>>  
>> 
>> .
>>
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Re: [neonixie-l] Re: Anyone purchased one of these clocks?

2022-12-23 Thread Robert G. Schaffrath

The battery backs up the time, not the settings. If you lose power you have to 
reset the 12/24 hour display mode, auto shutoff and background color settings.


Яoßəят

> On Dec 23, 2022, at 2:58 PM, Terry S  wrote:
> 
> 
> Robert -- I haven't installed a battery yet. Does the battery back up the 
> time and settings? 
> Yes setting the time and backlight is rather twisted.
> 
>> On Thursday, December 15, 2022 at 10:17:04 AM UTC-6 Robert G. Schaffrath 
>> wrote:
>> I have one of those that I bought two years ago. Relatively easy to assemble 
>> I believe socket pins were included. Setting the clock is annoying though.
>> 
>>> On Monday, December 12, 2022 at 10:15:01 PM UTC-5 Terry S wrote:
>>> https://www.ebay.com/itm/314168311777
>>> 
>>> Many sellers on ebay.
>>> 
>>> Does it come with pins for the tubes?
>>> 
>>> Terry
> 
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[neonixie-l] Re: Anyone purchased one of these clocks?

2022-12-15 Thread Robert G. Schaffrath

I have one of those that I bought two years ago. Relatively easy to 
assemble I believe socket pins were included. Setting the clock is annoying 
though.

On Monday, December 12, 2022 at 10:15:01 PM UTC-5 Terry S wrote:

> https://www.ebay.com/itm/314168311777
>
> Many sellers on ebay.
>
> Does it come with pins for the tubes?
>
> Terry
>

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[neonixie-l] Re: IN-17 Direct Drive Clock

2022-12-12 Thread Robert G. Schaffrath

I agree. For me my favorites come down to the ZM1020/ZM1022's, Rodan 
GR-111Pa's and IN-17's. I picked up a bunch of NOS IN-17's a few years ago 
just before COVID hit and prices went off the rails. Have not done anything 
with them yet though I would like to make a tiny 6-digit clock. I like 
their small size AND the fact they have a real "5" rather than the inverted 
"5" found in IN-12's and IN-14's.

On Sunday, December 11, 2022 at 10:31:52 AM UTC-5 Keith Moore wrote:

> IN-17's are possibly my favorite nixies. Tough, small, pretty (and can 
> even look okay with LED backlight sometimes!). I love this build. Thanks 
> for sharing! 
>
>>
>>

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[neonixie-l] B7971 UK eBay

2022-11-29 Thread Robert

Not connected with this, but taking into account the cost of the clock (£300-400?) , seems expensiveHomemade B7971 Nixie clock with wifi connection & scrolling text message b7971ebay.co.ukThanksRob



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Re: [neonixie-l] Digest for neonixie-l@googlegroups.com - 10 updates in 1 topic

2022-11-18 Thread Robert Pfingston

I’m interested. Have 10 DT-104’s I’ve been saving for a long time. Sent from my iPhoneOn Nov 18, 2022, at 1:43 AM, neonixie-l@googlegroups.com wrote:

  

  

  

  
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  Any interest in IV-9 numitron clock kit? -
  10 Updates

  
  




  
  
  
  

  Any interest in IV-9 numitron clock kit?

  
  

  

  

  Mark Moulding : Nov 17 12:06AM -0800


I've built quite a few devices using the IV-9 tubes, and found them to be 
extremely durable. (I probably wouldn't be interested in a clock kit, as I 
have about 3500 tubes in stock...)  If operated below their maximum 
operating parameters (dimmed a little, and soft-started filaments), they'll 
run essentially forever.  The DTF-104Bs are even better, and are really 
fantastic-looking tubes.  They're also extremely rugged mechanically.  I've 
built Burning Man Mutant Vehicle dashboards using these, and the rather 
extreme conditions of that application didn't faze them at all.  I've also 
had clocks running for nearly a decade with exactly zero failure due to the 
tube burning out.  Impact with flying objects is another matter, but in 
fact a tube survived for a minute or two even with its outer glass envelope 
completely shattered.  Again, if operated within their specified 
environment, their lifespan is essentially unlimited.
~~
Mark Moulding
 
On Wednesday, November 16, 2022 at 10:04:59 PM UTC-8 William Lee wrote:
 

  

  

  Ian : Nov 17 09:52AM


I’m in
 

  

  

  Peter Hall : Nov 17 10:48AM


If Richard is in-So am I ??
  Peter..insidiousnixies:Utube
 
From: 'Ian' via neonixie-l
Sent: Thursday, November 17, 2022 5:52 PM
To: neonixie-l@googlegroups.com
Subject: Re: [neonixie-l] Re: Any interest in IV-9 numitron clock kit?
 
I’m in
 
On 17 Nov 2022, at 04:28, Richard Scales > wrote:
 
I have built several numitron kits from nixieclock.biz and am a big fan of numitrons, I have only had them running far a couple of years and then for only half a day at most. I have heard that their tube life is 'long' but have not seen any actual numbers. I have also re-worked the design for other numitrons like IV-19 and DTF104B.
 
 

 
- Richard
 
 
On Wednesday, 16 November 2022 at 22:26:36 UTC mo...@neonixie.com wrote:
Hi Everybody,
 
I seem to have enough IV-9 tubes to where I can produce a batch of 100 or so 6 digit numitron clocks. Thinking ESP32 powered like my last one (Thank you to all those who gave suggestions, the kit came out great!). I'm thinking maybe try for a full through-hole solder kit with some shift registers.
 
I know nixies are more popular.. but anyone interested in a numitron clock kit?
 
Oh, one question I do have, anyone have long term experience (ie, years?) running this particular tube? How do they fare?
 
Thank you!
 
Regards,
-Moses
 
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  Peter Hall : Nov 17 11:15AM


Or am I mistaken—Its Ian that’s in…sorry..I’m looking at Emails,that go everywhere.Gotto go
Too Neonixe site,next time.
Peter
 
From: Peter Hall
Sent: Thursday, November 17, 2022 7:06 PM
To: neonixie-l@googlegroups.com
Subject: RE: [neonixie-l] Re: Any interest in IV-9 numitron clock kit?
 
If Richard is in-So am I 
  Peter..insidiousnixies:Utube
 
From: 'Ian' via neonixie-l
Sent: Thursday, November 17, 2022 5:52 PM
To: neonixie-l@googlegroups.com
Subject: Re: [neonixie-l] Re: Any interest in IV-9 numitron clock kit?
 
I’m in
 
On 17 Nov 2022, at 04:28, Richard Scales > wrote:
 
I have built several numitron kits

[neonixie-l] E1T tubes

2022-10-07 Thread Robert

Not nixie, but does anyone know between which dates they were made, 1952 to 
1960?

Thanks
Rob

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[neonixie-l] Re: FS: Mostly working Heathkit 1103 counter

2022-09-12 Thread Robert L

Hi folks,

Counter sold and on the way to a local UPS store.

Many thanks neonixie!

Bob

On Thursday, September 8, 2022 at 10:42:17 AM UTC-7 Robert L wrote:

> Hi folks,
>
> Prompted by Johns DMM post, I have a mostly working Heathkit 1103 nixie 
> counter in fair cosmetic condition. 
>
> All display elements and annunciators light up, all switches seem to be 
> working as well. Counter goes out of lock over significant portions of the 
> input range so definitely some trouble shooting or repair needed.
>
> Here are a couple of video shot earlier this morning:
> https://photos.app.goo.gl/VDFrFEoZSnu672Gv7
>
> https://photos.app.goo.gl/52qMmwZDZ4NKdwjB8
>
> User manual here: https://www.vintage-radio.info/download.php?id=716
>
> Happy to meet with a buyer on Zoom to demo as necessary.
>
> Asking $140 with delivery by the most cost effective carrier - USPS 
> Priority Mail, UPS or Fed Ex ground. Counter will be very well packed, 
> tracked and insured. 
>
> Payment by Zelle. Other payment methods possible, but we need to discuss. 
> Weaning myself away from PayPal!
>
> Many thanks!
>
> Bob
>

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[neonixie-l] FS: Mostly working Heathkit 1103 counter

2022-09-08 Thread Robert L

Hi folks,

Prompted by Johns DMM post, I have a mostly working Heathkit 1103 nixie 
counter in fair cosmetic condition. 

All display elements and annunciators light up, all switches seem to be 
working as well. Counter goes out of lock over significant portions of the 
input range so definitely some trouble shooting or repair needed.

Here are a couple of video shot earlier this morning:
https://photos.app.goo.gl/VDFrFEoZSnu672Gv7

https://photos.app.goo.gl/52qMmwZDZ4NKdwjB8

User manual here: https://www.vintage-radio.info/download.php?id=716

Happy to meet with a buyer on Zoom to demo as necessary.

Asking $140 with delivery by the most cost effective carrier - USPS 
Priority Mail, UPS or Fed Ex ground. Counter will be very well packed, 
tracked and insured. 

Payment by Zelle. Other payment methods possible, but we need to discuss. 
Weaning myself away from PayPal!

Many thanks!

Bob

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Re: [neonixie-l] lot of 34 B7971s on ebay..

2022-08-18 Thread Robert G. Schaffrath

It's funny, I have Geiger counters too as well as other interesting hobby 
things, well to me anyhow, that no one else in the family shares any 
interest in (ham radio, stamps & coins, electronic tools, classic glass 
insulators, minerals, etc.). I wish it was possible to have them go to 
several charities I work with so they could monetarily benefit, instead of 
disinterested people, but that would be an extremely heavy lift for them. 
The one bright spot is one of my nephews is entering university in the fall 
planning to study Nuclear Chemistry. If he does complete that course of 
study then the Geiger counters and other related items would probably be of 
interest to him.

Asset tags are an interesting idea. I used to work for a major corporation 
where we had asset tags on all of our valuable equipment (PC's, monitors, 
printers, coffee makers, etc.). Meanwhile, as the company was shedding 
divisions and downsizing people, moral was horrible and people just stopped 
caring (kind of hard when you do not know if you will have a job the 
following week). Of course HR always tried different motivational posters 
including "Employees are our most valuable asset" to try and cheer people 
up. Several of those posters wound up with messages attached that said "Our 
most valuable assets have tags on them".

On Thursday, August 18, 2022 at 12:07:59 PM UTC-4 nickja...@gmail.com wrote:

> After seeing estate sales and ebay stuff, I started an inventory of my 
> Geiger counters, isotope identifiers, other stuff that is worth something 
> on ebay vs thrift store crap.  I got 'permanent' ID labels and printed them 
> with a unique serial number to key to an Excel spreadsheet, and was going 
> to add a photo of the item.  Then, I moved and well, need to start over 
> again.  I mean, ll be dead and not caring any more, but it would be a shame 
> for so much money to be lost for my brothers or nieces...
>
> On Thu, Aug 18, 2022 at 10:37 AM Robert G. Schaffrath <
> robert.s...@gmail.com> wrote:
>
>> I see they sold but no idea what the offer was.
>>
>> I agree that selling them as a lot rather than individually is not that 
>> great an idea. I have six NOS, and a seventh used, bubble wrapped and in a 
>> box with a detailed note about them for whichever family member stumbles 
>> across them someday (assuming I do not get a chance to do anything with 
>> them). I advise whomever to investigate selling them individually and that 
>> tossing them would be very stupid.
>>
>> On Wednesday, August 17, 2022 at 8:08:25 PM UTC-4 Kevin A. wrote:
>>
>>> If they were tested and guaranteed that would be one thing, but throwing 
>>> a bunch of these in a box as-is and charging top dollar probably won't get 
>>> them moving any time soon... 
>>>
>>> On Wed, Aug 17, 2022, 7:24 PM gregebert  wrote:
>>>
>>>> Seller is probably testing the waters to see if anyone take a BIG bite. 
>>>> Next step is to break-up into smaller lots.
>>>>
>>>>
>>>>
>>>>
>>>> On Wednesday, August 17, 2022 at 3:48:27 PM UTC-7 Jeff Walton wrote:
>>>>
>>>>> Remembering some older surplus places prior to the internet.
>>>>>
>>>>> Polypaks was one of them that had a printed flyer or ads in the back 
>>>>> of electronics magazines. They often displayed this disclaimer with some 
>>>>> of 
>>>>> their products,  "... No time to test 'em!" 
>>>>>
>>>>> Of course,  B-7971's were two for $8 with the Ultronics board...
>>>>> Not $200 each.   
>>>>>
>>>>> Jeff 
>>>>>
>>>>>
>>>>>  Original message 
>>>>> From: Audrey  
>>>>> Date: 8/17/22 5:37 PM (GMT-06:00) 
>>>>> To: neoni...@googlegroups.com 
>>>>> Subject: Re: [neonixie-l] lot of 34 B7971s on ebay.. 
>>>>>
>>>>> Yeah. It's silly to sell them all as one lot, and even sillier to not 
>>>>> figuring out how to test them for that pricepoint...
>>>>>
>>>>> On Wed, Aug 17, 2022, 6:30 PM Michail Wilson  wrote:
>>>>>
>>>>>> Quite the number of tubes.
>>>>>>
>>>>>> Since he is asking retail for them all, and not likely too many 
>>>>>> people want or can afford that many, I asked if there was a guarantee 
>>>>>> since 
>>>>>> if even 1 could be bad, it would make almost the entire order 
>>>>>> non-profitable.  Awaiting a response.
&

Re: [neonixie-l] lot of 34 B7971s on ebay..

2022-08-18 Thread Robert G. Schaffrath

I see they sold but no idea what the offer was.

I agree that selling them as a lot rather than individually is not that 
great an idea. I have six NOS, and a seventh used, bubble wrapped and in a 
box with a detailed note about them for whichever family member stumbles 
across them someday (assuming I do not get a chance to do anything with 
them). I advise whomever to investigate selling them individually and that 
tossing them would be very stupid.

On Wednesday, August 17, 2022 at 8:08:25 PM UTC-4 Kevin A. wrote:

> If they were tested and guaranteed that would be one thing, but throwing a 
> bunch of these in a box as-is and charging top dollar probably won't get 
> them moving any time soon... 
>
> On Wed, Aug 17, 2022, 7:24 PM gregebert  wrote:
>
>> Seller is probably testing the waters to see if anyone take a BIG bite. 
>> Next step is to break-up into smaller lots.
>>
>>
>>
>>
>> On Wednesday, August 17, 2022 at 3:48:27 PM UTC-7 Jeff Walton wrote:
>>
>>> Remembering some older surplus places prior to the internet.
>>>
>>> Polypaks was one of them that had a printed flyer or ads in the back of 
>>> electronics magazines. They often displayed this disclaimer with some of 
>>> their products,  "... No time to test 'em!" 
>>>
>>> Of course,  B-7971's were two for $8 with the Ultronics board...Not 
>>> $200 each.   
>>>
>>> Jeff 
>>>
>>>
>>>  Original message 
>>> From: Audrey  
>>> Date: 8/17/22 5:37 PM (GMT-06:00) 
>>> To: neoni...@googlegroups.com 
>>> Subject: Re: [neonixie-l] lot of 34 B7971s on ebay.. 
>>>
>>> Yeah. It's silly to sell them all as one lot, and even sillier to not 
>>> figuring out how to test them for that pricepoint...
>>>
>>> On Wed, Aug 17, 2022, 6:30 PM Michail Wilson  wrote:
>>>
 Quite the number of tubes.

 Since he is asking retail for them all, and not likely too many people 
 want or can afford that many, I asked if there was a guarantee since if 
 even 1 could be bad, it would make almost the entire order non-profitable. 
  
 Awaiting a response.

  

  

 Michail 

  

 *From:* neoni...@googlegroups.com  *On 
 Behalf Of *Audrey
 *Sent:* Wednesday, August 17, 2022 10:30 AM
 *To:* neonixie-l 
 *Subject:* [neonixie-l] lot of 34 B7971s on ebay..

  

 not my listing obviously..

 https://www.ebay.com/itm/354229991047

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 .

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>>> .
>>>
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>>
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[neonixie-l] Re: B7971 tubes for sale - $150 each

2022-05-06 Thread Robert G. Schaffrath

Poly Paks, Meshna, et al. By 1979 used tubes were $4/each and NOS were 
$5/each at Meshna. I bought a few NOS that I still have but looking back, 
yes I wish I had bought more. But, honestly, what to do with all of them 
back then? They were still pretty common.

On Wednesday, May 4, 2022 at 7:01:41 PM UTC-4 gregebert wrote:

> I'm still kicking myself for not buying a bunch of these from PolyPaks 
> back in the 1970's
>
> On Wednesday, May 4, 2022 at 1:35:25 PM UTC-7 Pramanicin wrote:
>
>> Tubes have sold.
>>
>> Thanks,
>>
>> Nick
>>
>> On Wed, May 4, 2022 at 6:54 AM Nicholas Stock  wrote:
>>
>>> Hi folks, I have a contact looking to sell 4 B7971 tubes. They are 
>>> untested, but look to be in good shape from the attached photos. $150 each 
>>> per tube (which is significantly less than what they're selling for on eBay 
>>> at the moment, believe it or not!).
>>>
>>> [image: unnamed.jpg]
>>> [image: unnamed-2.jpg]
>>>
>>> If anyone is interested, then please contact Jeff directly at 
>>> k3dua...@gmail.com
>>>
>>> Cheers,
>>>
>>> Nick
>>>
>>

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Re: [neonixie-l] Noon to be dekatron spinner owner

2022-04-25 Thread Robert G. Schaffrath

"Magic Eye" tubes are some of my earliest memories of interesting displays 
when I was a child. My maternal grandparents had a Dumont TV (didn't 
everyone LOL?) that used a 6AL7 eye tube for tuning the built in AM 
receiver. My father had a Fisher AM/FM receiver (with add-on stereo MPX 
demodulator) that used a very rare 6GE12 eye tube with one side for AM and 
the other FM. Then of course there were more common round 6E5, 6U5 tubes I 
recall on some vintage receivers of various family members. By the time I 
was a teen in the 1970's, radio used tuning meters.

On Monday, April 25, 2022 at 3:13:24 AM UTC-4 Dekatron42 wrote:

> You could mount the regulator & mosfet on the underside of the circuit 
> board and perhaps get more space for a heat sink there. Just bend the legs 
> upwards and use a spacer between the tab and the circuit board when 
> screwing it in place so you don't stress the tab and bend it.
>
> /Martin
>
> On Monday, 25 April 2022 at 02:57:59 UTC+2 Terry Bowman wrote:
>
>>
>> On Apr 24, 2022, at 5:25 PM, Aisha Love  wrote:
>>
>> My interest started with Nixie tubes and expanded from there. I hope to 
>> one day have a large collection of unique vintage display devices.
>>
>>
>> Magic eyes. Here are some really inexpensive boards that are a good 
>> starting point. They have a 12V jack, 3.5mm audio jack and a power switch 
>> out 
>> of the way in the back. This first one includes a Chinese EM84:
>>
>> https://www.ebay.com/itm/193443031569
>>
>>
>> The second is almost identical. It uses three different sockets for three 
>> different pinouts: EM80/81, EM800/EM84 or a Soviet 6E5S:
>>
>> https://www.ebay.com/itm/191011269169
>>
>>
>> The seller has all three sockets. I bought six boards and two sets of 
>> sockets. I also scored two or three each of the tubes listed above. The 
>> only caveat with these particular boards is that the 6V regulator and the 
>> power MOSFET don't have heatsinks and I haven't been able to find any small 
>> enough to fit (there's almost no room). The first board has an LM317 and it 
>> gets hotter than the LM7806.
>>
>> The 6E5S really heats things up. My eternal thanks to anyone who can find 
>> an affordable TO-220 heatsink that's barely larger than the horizontal TTR 
>> itself.
>>
>>
>> My apologies if I've already talked about this before. I'm very happy 
>> with what I ended up with and like to share. 8D
>>
>> I really do need to post this info to my blog but I haven't had time to 
>> take pictures and shoot video. Sound familiar?
>>
>>
>> Terry Bowman, KA4HJH
>> "The Mac Doctor"
>>
>> "If only you could see what I've seen with your eyes."—Roy Batty, *Blade 
>> Runner*
>>
>>

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Re: [neonixie-l] RZ568m shortage ?

2022-04-14 Thread Robert Norman

Have you tried emailing him directly?


Rob

> On 14 Apr 2022, at 20:04, gregebert  wrote:
> 
> I've been checking on Dalibor's website for a few weeks now hoping to 
> purchase a single R|Z568m tube as a spare, but only clocks-with-tubes are 
> available with no mention of when tubes will be available. Does anyone know 
> when availability will improve ?
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[neonixie-l] Re: Neons for all!

2022-04-13 Thread Robert G. Schaffrath

Wow, I have not seen those ".22 caliber" Neon bulbs (A1H) since I was a kid 
back in the 1970's. Somewhere I think I have a few. A friends father was an 
EE and had a bunch of them from work. The friend gave me a few to play 
with. I recall that even though they physically looked the same, some were 
redder and some were bluer than others. Guessing some had mercury and the 
others did not.

On Tuesday, April 12, 2022 at 2:57:40 PM UTC-4 nei...@gmail.com wrote:

> Memotronics 
>  
> is a good source for the hi-brite C2A and A3C bare lamps.  They come with 
> 2" (50 mm) leads.  (US company)

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Re: [neonixie-l] eBay Paranoia

2022-04-03 Thread Robert G. Schaffrath

My biggest issues with eBay in the past were not receiving and item though 
it was a rare occurrence. I would contact eBay and they would tell me to 
contact PayPal. Contacted PayPal and they would tell me to contact eBay. 
One big circle j__k. Since the amounts had been under USD$10, I just wrote 
it off. But it has always made me very leery of buying anything on eBay 
though I have not had any issues for many years. When I first opened my 
PayPal account, I too worried about them having my checking account. In the 
end, I opened a second checking account at a different bank right near me 
where I already had a savings account. I keep very little money in the 
account as I can easily transfer money from savings to checking as needed 
(I think back to when I was kid in the 1960's and my father would drive to 
the savings bank, take out money and then drive to the commercial bank to 
put it in the checking account - glad that is a thing of the past). As 
such, there is very little PayPal, or now eBay, can take from me if they 
are hacked or just decide they want some money for some reason.

On Saturday, April 2, 2022 at 12:10:32 PM UTC-4 SWISSNIXIE - Jonathan F. 
wrote:

> I've never had problems with payments on ebay so far, but i have to admit 
> that i think ebay is getting worse and worse every day.
> My biggest issue is that ebay is actively hiding items that can't be 
> delivered to your address. I have multiple addresses for shipping, but only 
> the primary one is considered valid at searches. Its a pain switching 
> between 3 addresses to see "all" items for a specific search.  Not to 
> mention the ridiculous forced translations they do since a while ago...
>
> On Saturday, 2 April 2022 at 00:39:29 UTC+2 Jim KO5V wrote:
>
>> Thanks to everyone who responded. I am very frustrated with eBay, since I 
>> get an email every couple of weeks telling me that "action is required to 
>> put my account back in good standing". It sounds like I am a deadbeat, 
>> rather than a paying customer.
>>
>> I had considered opening a 'for internet use only' bank account, but 
>> giving out my social security number is probably always going to be the 
>> real problem. It might already have been compromised, but I guess I just 
>> don't want to volunteer any more information than is necessary.
>>
>> As I get older, I am wanting to simplify. eBay is convenient, but there 
>> are ham radio sites, etc where I can sell my treasures, so except for the 
>> occasional purchase, I'm  probably done with eBay - after almost 25 years.
>>
>>  Best regards, Jim
>>
>>
>>
>> On Friday, April 1, 2022 at 7:24:15 AM UTC-6 Paul Andrews wrote:
>>
>>> @threeneurons, that is very sensible. As someone who had their identity 
>>> stolen I am very wary about any of this. BTW 'stolen identity' does not 
>>> mean they got my credit card info. It means they got my identity and went 
>>> around opening their own credit cards in my name, using my address and my 
>>> social security number. This year we found out that my son also got his 
>>> identity stolen - someone filed their taxes using his information (I still 
>>> don't see the benefit of that).
>>>
>>> Anyway, I stopped selling online after paypal sent me a 1099. The extra 
>>> hassle filing taxes isn't worth it for the small amount of money I get from 
>>> selling.
>>>
>>> On Thursday, March 31, 2022 at 6:29:12 PM UTC-4 threeneurons wrote:
>>>
 eBay has been doing this now, for about a year and a half. I've had no 
 problems, so far. Initially, I didn't understand why they did this, only a 
 few years after selling off Paypal. So It seemed kinda stupid. But I think 
 it has to do with some legal changes both in the US and in Europe. In the 
 US, all online transactions need to include the sales tax of the buyer's 
 state. In Europe, they want the VAT collected at time of purchase. When 
 eBay took over handling the payments, they take care of both of those. 
 Sales tax and VAT get routed directly from the buyer to eBay, and (I 
 assume) to the respective government agency. I only get the item's price, 
 shipping (that I established), less eBay's fees (~10%). They deposit that 
 amount to my bank account, either daily, or weekly, dependent on the 
 sellers preference.

 I Long ago set up a different bank account, at a whole different bank, 
 just for online stuff. That way if either eBay or Paypal get hacked, only 
 this "online use" account is exposed. Your SSN is needed, if and when they 
 issue 1099s.

 Of course, all banks now, have an on line presents, so with my luck, my 
 main bank gets breached, while the small sum, at the "online use" bank 
 stays unaffected.

 On Thursday, March 31, 2022 at 1:45:37 PM UTC-7 Pramanicin wrote:

> Etsy sellers have nixies etc on themI quite liked that platform in 
> the beginning, but slowly their commissions grew higher and I gave up 
>

Re: [neonixie-l] Re: Tube Storage

2022-03-25 Thread Robert G. Schaffrath

Ammo boxes are good for protecting from typical crushing and water but will 
not protect from fire. If you ever examine a real fireproof box sold for 
important papers (I have one I bought at Staples years ago), they have very 
thick sides and are quite heavy. And they have a rating on how long they 
will stand up to an intense fire.

My late grandfather stored his stamp and coin collection in very large ammo 
boxes solely to protect from water and smoke damage in the event of a fire 
in my grandparents apartment. He realized that fireproof storage was way to 
prohibitive (and heavy) to have in their residence. Plus in most fires, the 
actual fire damage is localized with the majority of damage being from the 
hundreds, if not thousands, of gallon of water and smoke.

On Thursday, March 24, 2022 at 12:43:47 PM UTC-4 gregebert wrote:

> Metal ammo boxes. Very unlikely they will get crushed, and might even 
> survive a fire.
>
> On Thursday, March 24, 2022 at 8:40:37 AM UTC-7 Richard Scales wrote:
>
>> I was fortunate to pick up an old plan chest which is basically lots of 
>> deep and wide draws but the draws are not that tall.
>> Each shelf is lined with polystyrene and tubes push in to the polystyrene 
>> - or lay flat - or in boxes. Lots of tubes in a single footprint.
>>  - Richard
>>
>>
>> On Thursday, 24 March 2022 at 01:15:15 UTC LB wrote:
>>
>>> For smaller tubes, I use standard 7/9 pin miniature tube boxes, and for 
>>> the larger ones, I have both found cardboard boxes, and modified boxes to 
>>> better fit the tubes. I keep all of the boxes inside an ikea cardboard box, 
>>> but it’s pretty unorganized.
>>>
>>> On Mar 23, 2022, at 2:45 PM, Paul Andrews  wrote:
>>>
>>> That's essentially what I use, and a dymo or brother labeler, except 
>>> for the big ones, and they stay in boxes on a shelf with the contents 
>>> written on them in sharpie on all sides.
>>>
>>>
>>>
>>> On Wednesday, March 23, 2022 at 4:51:28 PM UTC-4 Terry Bowman wrote:
>>>
 This is a "how do you guys do it?" question...

 I need a way to organize and safely store the odds and ends of tubes 
 that I have. Nixies, Dekatrons, bargraphs, Magic Eyes etc. as well as 
 a lot of the weird things from the WWII era.

 Half of this stuff is loose except for some bubble wrap. Most of the 
 Soviet surplus items are still in the box sent from Ukraine, all different 
 shapes and sizes. It makes finding a particular tube a real hassle and 
 handling a box like this can lead to disaster.

 Then there's cabinets. You can't find anything decent anymore. 
 Everything is overpriced flimsy crap. The drawers all fall out if you tip 
 it 30°. Standing cabinets are only four feet high and can't take more than 
 five pounds of stuff on top.

 I did manage to find this:

 https://www.amazon.com/dp/B003P2UOCO

 From the video it appears that at least the drawers don't slide all of 
 the way out.

 I also need boxes for my bubble lights and bubble tubes. If I had a a 
 18 x 26 laser cutter I'd make custom boxes and inserts out of heavy C1S 
 stock but I don't have a place to set one up. Can't afford one that size 
 right now, anyway.

 Terry Bowman, KA4HJH
 "The Mac Doctor"

 https://www.astarcloseup.com

 Edward R. Murrow: “Who owns the patent on this vaccine?”
 Dr. Jonas Salk: “Well, the people, I would say. There is no patent. 
 Could you patent the sun?”—*See It Now*, 12 April 1955

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>>>  
>>> 
>>> .
>>>
>>>

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Re: [neonixie-l] New find!

2022-02-26 Thread Robert G. Schaffrath

I have an old US Navy scope but I have no idea of the USM model. I bought 
it at a hamfest back in the mid-1970's when I was a kid for $5. It was made 
by Dumont no less! The thing weighs a ton. The 5JP1 tube was bad and it 
needed to be recapped. My maternal grandfather gifted me a new tube that he 
got at Liberty Electronics in New York City. The capacitors I had to 
special order at Lafayette Radio and they came in in drips and drabs 
(thankfully - I did not have a lot of money). I also managed to blow the 
991 neon regulator bulb and a good friend of my fathers who worked as a 
transmitter technician for WVIT-TV in Hartford sent me a replacement. I 
also managed to track down a user manual at the time as it turned out that 
Fairchild had bought out what remained of Dumont and had their intellectual 
property. The original Dumont manual has a Fairchild cover stapled to it. 
Funny how one could get information and parts without the Internet back 
then.

I still have it though I have not turned it on in probably 20 years. I 
would have to hook it up to my variac and slowly power it up again to allow 
the capacitors to reform. I have not had much use for a scope these days 
and if I did, I would get a device that interfaced to my PC.

On Tuesday, February 22, 2022 at 4:31:09 PM UTC-5 gregebert wrote:

> What's even more interesting is that a lot of these old dinosaurs still 
> work. A friend at work gave me a US Navy scope (USM-117) from the early 
> 1960's, and at first it was having some problems generating high-enough 
> anode voltage for the CRT, but letting it run a few hours apparently coaxed 
> the capacitors into working again. The other neat thing about this scope is 
> that the only vacuum tube is the CRT; everything else is transistors which 
> was quite a feat for 1963.
>
> Many of our beloved nixies and CRTs are approaching, and even exceeding, 
> 60 years old and I am in awe of the fact the vacuum seals apparently are 
> still holding.
>
> On Tuesday, February 22, 2022 at 11:38:28 AM UTC-8 nice...@optonline.net 
> wrote:
>
>> When RCA was in its heyday, they promoted their "RCA Institutes” 
>> correspondence courses in electronics. As part of the course in
>>
>> TV/radio servicing, the students had to assemble their own test gear. 
>> This was one of those items. It is actually a rebranded Eico
>>
>> model 430 oscilloscope from the late ‘60s. I know this since I have the 
>> model 435 which appears similar but has better bandwidth.
>>
>> I have always liked the looks of this series of test equipment that Eico 
>> made during this period compared to their earlier designs.
>>
>> They are simple to use and relatively easy to fix since they don’t have 
>> sophisticated features like triggered/delayed sweep. It looks
>>
>> like you’ve scored a nice one. Good luck and enjoy!
>>
>> Rich
>>
>>
>>
>>
>> On Feb 22, 2022, at 9:45 AM, martin martin  wrote:
>>
>> Since we are on the subject of CRTs...  I was asked to pickup all kinds 
>> of vintage items from an "Estate Giveaway"
>>
>> Here's the first one!  More on the way, Heathkit VTVMs too..
>>
>>
>>
>> -- 
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>>  
>> 
>> .
>> 
>>
>>
>>

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Re: [neonixie-l] Is it just me?

2022-02-05 Thread Robert G. Schaffrath

er 4M.  I'm hoping I 
>>>> can make some larger nixie tube cases and also other stuff like missing 
>>>> feet for test gear etc.  The resolution is legit.  Unlike many 3D printers 
>>>> you really can't see the layers and it's finally something you can afford 
>>>> to buy.
>>>>
>>>>  
>>>>
>>>> There was a time when eBay was just too many things to consider but it 
>>>> seems these days it's look and see if anything neat comes up.
>>>>
>>>>  
>>>>
>>>> I bought a couple Heathkit GC-1005's with a couple spare sets of SP-352 
>>>> this week.  That's my buys this week.  I thought $100 each was great price 
>>>> for the clocks in mint condition?  The Babcock Beckman were 60$ for set of 
>>>> 3 working.  The clocks aren't flickering either.
>>>>
>>>>  
>>>>
>>>> Bill
>>>>
>>>>  
>>>>
>>>> Bill
>>>>
>>>>  
>>>>
>>>> On Sun, Jan 30, 2022, 7:08 AM Paul Andrews  wrote:
>>>>
>>>> I feel there should be a pinned thread titled “I can’t believe the 
>>>> price of tubes these days”. Don’t get me wrong, I also gasp at some of the 
>>>> asking prices I see!
>>>>
>>>>  
>>>>
>>>> Love those IN-18s. I would love to have a set, but I’m not sure I could 
>>>> justify the asking price, and I really need to make clocks for all the 
>>>> tubes I already have.
>>>>
>>>> On Sunday, January 30, 2022 at 8:18:36 AM UTC-5 Robert G. Schaffrath 
>>>> wrote:
>>>>
>>>> I paid $125 for 25 NOS  Philips ZM1022's back in 2002. Kicking myself I 
>>>> did not buy 50 at the time as I had the money and they are one of my 
>>>> favorite style tubes. They sat packed away for years until 2019 when I got 
>>>> several of the four digit Chinese clocks that use them.
>>>>
>>>> On Saturday, January 29, 2022 at 7:26:46 PM UTC-5 J Forbes wrote:
>>>>
>>>> A screen shot of part of David's Cathode Corner page twenty years ago. 
>>>> I remember when he paid $800 for a box of 100 ZM1040s. Man that was a lot 
>>>> of money! :)
>>>>
>>>>  
>>>>
>>>>  
>>>>
>>>>  
>>>>
>>>> On Saturday, January 29, 2022 at 4:28:37 PM UTC-7 Terry Bowman wrote:
>>>>
>>>> On Jan 24, 2022, at 2:39 PM, Nick Andrews  wrote:
>>>>
>>>>  
>>>>
>>>> That's just crazy talk.  Glad I picked up some IN-9 and IN-13 a while 
>>>> back, but wish I'd bought a lot more.  I think IN-9 should be about $5-6ea 
>>>> and the 13s what, $10?  I wish, not any more!  I think it's awesome that 
>>>> some folks are being inventive and making things, but it really sucks when 
>>>> it ruins the market for specific items which haven't been made in decades.
>>>>
>>>>  
>>>>
>>>> It's been a little over four years since I got into this hobby. In 
>>>> April of 2018 I made some large purchases on eBay; a variety of cold 
>>>> cathode goodies, all NOS. The Nixies were all symbolic, no numerics. 
>>>> Here's 
>>>> a sampling of the prices (not including very reasonable combined 
>>>> shipping). 
>>>> :
>>>>
>>>>  
>>>>
>>>> vannadiy:
>>>>
>>>> OG-4 - @$5
>>>>
>>>> 2  each of IN-19A/B/V - $11 = @$1.84
>>>>
>>>> 10  IN-7 - $11.50 = @$1.15
>>>>
>>>>  
>>>>
>>>> uralspirit:
>>>>
>>>> IN-15A/B - @$1.50
>>>>
>>>> IN-5A-1/IN-5B-1 - @$2.50
>>>>
>>>> IN-7A - @$2.00
>>>>
>>>> IN-7B - @$1.90
>>>>
>>>> *IN-13 - @$6.50*  [only $6 a week earlier]
>>>>
>>>>  
>>>>
>>>> Another seller listed 12 IN-9s for $32 and accepted my offer of $28. 
>>>> That's $2.34 apiece less than four years ago.
>>>>
>>>>  
>>>>
>>>> Sadly, I only purchased five of the IN-13s. Even worse, I could have 
>>>> gotten six or eight argon-filled IN-9s for $36 + shipping and passed on 
>>>> it. 
>>>> I haven't seen any since. o_O
>>>>
>>>>  
>>>>
>

Re: [neonixie-l] Is it just me?

2022-01-30 Thread Robert G. Schaffrath

I paid $125 for 25 NOS  Philips ZM1022's back in 2002. Kicking myself I did 
not buy 50 at the time as I had the money and they are one of my favorite 
style tubes. They sat packed away for years until 2019 when I got several 
of the four digit Chinese clocks that use them.

On Saturday, January 29, 2022 at 7:26:46 PM UTC-5 J Forbes wrote:

> A screen shot of part of David's Cathode Corner page twenty years ago. I 
> remember when he paid $800 for a box of 100 ZM1040s. Man that was a lot of 
> money! :)
>
>
>
> On Saturday, January 29, 2022 at 4:28:37 PM UTC-7 Terry Bowman wrote:
>
>> On Jan 24, 2022, at 2:39 PM, Nick Andrews  wrote:
>>
>> That's just crazy talk.  Glad I picked up some IN-9 and IN-13 a while 
>> back, but wish I'd bought a lot more.  I think IN-9 should be about $5-6ea 
>> and the 13s what, $10?  I wish, not any more!  I think it's awesome that 
>> some folks are being inventive and making things, but it really sucks when 
>> it ruins the market for specific items which haven't been made in decades.
>>
>>
>> It's been a little over four years since I got into this hobby. In April 
>> of 2018 I made some large purchases on eBay; a variety of cold cathode 
>> goodies, all NOS. The Nixies were all symbolic, no numerics. Here's a 
>> sampling of the prices (not including very reasonable combined shipping). :
>>
>> vannadiy:
>> OG-4 - @$5
>> 2  each of IN-19A/B/V - $11 = @$1.84
>> 10  IN-7 - $11.50 = @$1.15
>>
>> uralspirit:
>> IN-15A/B - @$1.50
>> IN-5A-1/IN-5B-1 - @$2.50
>> IN-7A - @$2.00
>> IN-7B - @$1.90
>> *IN-13 - @$6.50*  [only $6 a week earlier]
>>
>> Another seller listed 12 IN-9s for $32 and accepted my offer of $28. 
>> That's $2.34 apiece less than four years ago.
>>
>> Sadly, I only purchased five of the IN-13s. Even worse, I could have 
>> gotten six or eight argon-filled IN-9s for $36 + shipping and passed on it. 
>> I haven't seen any since. o_O
>>
>>
>> Right now I possess thirteen IN-9s and ten IN-13s. You know that some of 
>> these won't work well enough to be used. I have a use for seven of the 
>> IN-13s right now.
>>
>>
>> Terry Bowman, KA4HJH
>> "The Mac Doctor"
>>
>> "There is no Main Street anymore except at Disneyland—and try and buy a 
>> gun there"—Hank Hill
>>
>>

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[neonixie-l] Re: Shock hazard - Mr. Nixie ITS-1A clock

2022-01-28 Thread Robert L

Hi Greg, 

No, not ESD... My friend touched the shell on the cable to an external time 
source (clock ground) and the label (-270VDC). Not sure exactly what he was 
doing at the time to touch both, but there you are.

Bob


On Friday, January 28, 2022 at 5:28:27 PM UTC-8 gregebert wrote:

> If this uses an isolated supply (such as from a wall-wart), you need to 
> touch 2 circuit nodes at different voltages in order to get shocked.
> Any chance this was from electrostatic discharge (ESD) ?
>
>
> On Friday, January 28, 2022 at 1:26:31 AM UTC-8 Robert L wrote:
>
>> *I just remembered one more hazard... again an issue with the conductive 
>> black layer coming in contact with various voltages.*
>>
>> There is a small tab at an interior edge of the label plate sticking out 
>> toward the tube carrier pcb in the middle where the tube carrier connector 
>> is soldered to the tube carrier pcb. This is on the front side of the tube 
>> carrier pcb and is shown in circled the image below. The label plate tab is 
>> a few mm wide and is near the center of the label plate.  
>>
>> Make sure this tab is clear of and above the tube carrier connector 
>> mounting pins. It is possible to catch the black conductive side of the 
>> label sheet tab on the connector pins when mounting the tube carrier. 
>>
>> This issue will not be a problem if the label plate is properly installed 
>> with the tab clear of and above the connector pins.
>>
>> Again, the same potential problem... there is the possibility of various 
>> voltages coming in contact with the conductive layer... possibly another 
>> shock hazard as there are moderately high voltages on pins in the center 
>> section of the connector. I could also imagine a possibility of damage to 
>> clock circuits depending on which pins touch the conductive black surface. 
>> While the -270V pin is at the side of the connector well clear of the 
>> plastic tab, there are other voltages on center pins where contact with the 
>> label sheet is possible. 
>>
>> Once again, *make sure the tab is completely clear of and **above all of 
>> the connector mounting pins*. It is possible to catch the black 
>> conductive side of the label sheet tab on the connector pins when mounting 
>> the tube carrier.
>>
>> The tab is circled in red in this image copied from the assembly manual.
>> [image: tab.jpg]
>>
>> I think assuring that the label sheet tab clears the tube carrier pins 
>> will mitigate this additional hazard. I leave it to each of you to 
>> determine that the mitigation you adopt is safe and sufficient. My intent 
>> is to make others aware of the hazard so that they can mitigate as they see 
>> fit.
>>
>> And once again, best regard, stay safe and well!
>> Bob
>> On Friday, January 28, 2022 at 12:33:26 AM UTC-8 Robert L wrote:
>>
>>> Hi Terry,
>>>
>>> I guess I could have been more clear... The label plate ink is only 
>>> *moderately* conductive; black ink on a somewhat flexible white 
>>> substrate... the label is not FR4 pcb material and there are no metal 
>>> layers. I have no experience using this material and am just letting you 
>>> know what I saw looking at the sheet on my friends clock. Both photos show 
>>> pretty good detail of the sides of the label sheet. 
>>>
>>> I measured about 18K between each pair of two side case screws securing 
>>> the label plate. I measured higher resistance side to side between the more 
>>> widely spaced pairs of front and back screws. Again, moderately conductive. 
>>> Obviously no conductivity to speak of for the laser cut plastic case parts 
>>> that the retaining screws screw into. I was able to measure the high 
>>> voltage with one probe gently resting on the black ink surface. Lightly 
>>> touching the black paint with the rounded side of a probe tip was 
>>> sufficient. I did not need to touch the metal screws or use the sharp probe 
>>> tip to break through a surface layer in order to measure voltage.
>>>
>>> The flexibility of the printed sheet likely contributes to the problem. 
>>> The sheet was able flex a bit to make contact with the pots.
>>>
>>> Moving forward, my friends two clocks are packed and will be in the mail 
>>> tomorrow. I no longer have a clock that I can look at or experiment with.
>>>
>>> Again, all best regards, stay safe and well!
>>> Bob
>>>
>>>
>>> On Thursday, January 27, 2022 at 8:10:27 PM UTC-8 Terry S wrote:
>>>
>>>>  Is this printing

[neonixie-l] Re: Shock hazard - Mr. Nixie ITS-1A clock

2022-01-28 Thread Robert L

*I just remembered one more hazard... again an issue with the conductive 
black layer coming in contact with various voltages.*

There is a small tab at an interior edge of the label plate sticking out 
toward the tube carrier pcb in the middle where the tube carrier connector 
is soldered to the tube carrier pcb. This is on the front side of the tube 
carrier pcb and is shown in circled the image below. The label plate tab is 
a few mm wide and is near the center of the label plate.  

Make sure this tab is clear of and above the tube carrier connector 
mounting pins. It is possible to catch the black conductive side of the 
label sheet tab on the connector pins when mounting the tube carrier. 

This issue will not be a problem if the label plate is properly installed 
with the tab clear of and above the connector pins.

Again, the same potential problem... there is the possibility of various 
voltages coming in contact with the conductive layer... possibly another 
shock hazard as there are moderately high voltages on pins in the center 
section of the connector. I could also imagine a possibility of damage to 
clock circuits depending on which pins touch the conductive black surface. 
While the -270V pin is at the side of the connector well clear of the 
plastic tab, there are other voltages on center pins where contact with the 
label sheet is possible. 

Once again, *make sure the tab is completely clear of and **above all of 
the connector mounting pins*. It is possible to catch the black conductive 
side of the label sheet tab on the connector pins when mounting the tube 
carrier.

The tab is circled in red in this image copied from the assembly manual.
[image: tab.jpg]

I think assuring that the label sheet tab clears the tube carrier pins will 
mitigate this additional hazard. I leave it to each of you to determine 
that the mitigation you adopt is safe and sufficient. My intent is to make 
others aware of the hazard so that they can mitigate as they see fit.

And once again, best regard, stay safe and well!
Bob
On Friday, January 28, 2022 at 12:33:26 AM UTC-8 Robert L wrote:

> Hi Terry,
>
> I guess I could have been more clear... The label plate ink is only 
> *moderately* conductive; black ink on a somewhat flexible white 
> substrate... the label is not FR4 pcb material and there are no metal 
> layers. I have no experience using this material and am just letting you 
> know what I saw looking at the sheet on my friends clock. Both photos show 
> pretty good detail of the sides of the label sheet. 
>
> I measured about 18K between each pair of two side case screws securing 
> the label plate. I measured higher resistance side to side between the more 
> widely spaced pairs of front and back screws. Again, moderately conductive. 
> Obviously no conductivity to speak of for the laser cut plastic case parts 
> that the retaining screws screw into. I was able to measure the high 
> voltage with one probe gently resting on the black ink surface. Lightly 
> touching the black paint with the rounded side of a probe tip was 
> sufficient. I did not need to touch the metal screws or use the sharp probe 
> tip to break through a surface layer in order to measure voltage.
>
> The flexibility of the printed sheet likely contributes to the problem. 
> The sheet was able flex a bit to make contact with the pots.
>
> Moving forward, my friends two clocks are packed and will be in the mail 
> tomorrow. I no longer have a clock that I can look at or experiment with.
>
> Again, all best regards, stay safe and well!
> Bob
>
>
> On Thursday, January 27, 2022 at 8:10:27 PM UTC-8 Terry S wrote:
>
>>  Is this printing on a PCB? Not clear from your photos.
>>
>> It seems unlikely that ink used on a PCB would be conductive. 
>>
>>
>> On Thursday, January 27, 2022 at 2:52:25 PM UTC-6 Robert L wrote:
>>
>>> Hi folks,
>>>
>>> A friend received a rather nasty shock from one of his Mr. Nixie ITS-1A 
>>> clocks... To add insult to injury, he dropped the clock when shocked and 
>>> two tubes were broken.
>>>
>>> I've repaired his clock and, in the process, identified and mitigated 
>>> the shock hazard. Note that I am not connected with Mr. Nixie. I'm simply 
>>> trying to help others avoid this nasty experience.
>>>
>>> Here's what I found...
>>>
>>> 1) The black bottom case cover with  labels for "SET", "ADJ" and "ALM" 
>>> is likely printed using a carbon black based ink... Whatever the ink used, 
>>> it's conductive.
>>>
>>> 2) There are 6 trim pots on the tube carrier assembly used to 
>>> individually adjust -270V supplied to each of the six tubes. Tabs on the 
>>> trim pots are direct

[neonixie-l] Re: Shock hazard - Mr. Nixie ITS-1A clock

2022-01-28 Thread Robert L

Hi Terry,

I guess I could have been more clear... The label plate ink is only 
*moderately* conductive; black ink on a somewhat flexible white 
substrate... the label is not FR4 pcb material and there are no metal 
layers. I have no experience using this material and am just letting you 
know what I saw looking at the sheet on my friends clock. Both photos show 
pretty good detail of the sides of the label sheet. 

I measured about 18K between each pair of two side case screws securing the 
label plate. I measured higher resistance side to side between the more 
widely spaced pairs of front and back screws. Again, moderately conductive. 
Obviously no conductivity to speak of for the laser cut plastic case parts 
that the retaining screws screw into. I was able to measure the high 
voltage with one probe gently resting on the black ink surface. Lightly 
touching the black paint with the rounded side of a probe tip was 
sufficient. I did not need to touch the metal screws or use the sharp probe 
tip to break through a surface layer in order to measure voltage.

The flexibility of the printed sheet likely contributes to the problem. The 
sheet was able flex a bit to make contact with the pots.

Moving forward, my friends two clocks are packed and will be in the mail 
tomorrow. I no longer have a clock that I can look at or experiment with.

Again, all best regards, stay safe and well!
Bob


On Thursday, January 27, 2022 at 8:10:27 PM UTC-8 Terry S wrote:

>  Is this printing on a PCB? Not clear from your photos.
>
> It seems unlikely that ink used on a PCB would be conductive. 
>
>
> On Thursday, January 27, 2022 at 2:52:25 PM UTC-6 Robert L wrote:
>
>> Hi folks,
>>
>> A friend received a rather nasty shock from one of his Mr. Nixie ITS-1A 
>> clocks... To add insult to injury, he dropped the clock when shocked and 
>> two tubes were broken.
>>
>> I've repaired his clock and, in the process, identified and mitigated the 
>> shock hazard. Note that I am not connected with Mr. Nixie. I'm simply 
>> trying to help others avoid this nasty experience.
>>
>> Here's what I found...
>>
>> 1) The black bottom case cover with  labels for "SET", "ADJ" and "ALM" is 
>> likely printed using a carbon black based ink... Whatever the ink used, 
>> it's conductive.
>>
>> 2) There are 6 trim pots on the tube carrier assembly used to 
>> individually adjust -270V supplied to each of the six tubes. Tabs on the 
>> trim pots are directly over the conductive black printed base plate.
>>
>> The trim pot mounting tabs on my friends clock had come into contact with 
>> the conductive printed label. My friend touched the label and a grounded 
>> piece of the clock and was rewarded with the rather nasty shock.
>>
>> The photos below show the mitigation I used on my friends clocks.
>>
>> The mitigation is to assure that the trim pot tabs do not contact the 
>> black label plate. I added a triple thickness of Kapton tape between the 
>> trim pots and the label plate on his clocks. This may not be the best 
>> possible solution, but it's a starting place. I leave it to each of you to 
>> find a mitigation that you feel is safe. 
>>
>> I urge you to check your ITS-1A clock for this hazard and mitigate as you 
>> see fit. 
>>
>> I used a DVM to measure the voltage with one probe to the supply ground 
>> and the second probe touching the black printed label. I could also measure 
>> resistance between these two points with the clock unplugged. There should 
>> be an open circuit between these points -  no voltage / open circuit 
>> between these points.
>>
>> A visual check will let you see if there's clearance between the trim 
>> pots and the label plate. I strongly recommend that you mitigate the hazard 
>> - clearance or not. At a minimum, I think that you want a non-conductive 
>> barrier between the trim pot tabs and the conductive  label.
>>
>> Trim pot tabs are very close to the conductive label plate on the clock 
>> shown below... tabs were touching on the clock that shocked my friend::
>>
>> [image: PXL_20220127_175801532.jpg]
>>
>> This is the clock that shocked my friend. The photo shows a triple 
>> thickness of Kapton tape separating all of the trim pot tabs from the label 
>> plate. Tape is held in place by adhesive backing and is also trapped 
>> between the tube carrier and label plate:
>>
>> [image: PXL_20220127_180629685.jpg]
>>
>> This hazard and a possible mitigation posted here in the hope that it 
>> prevents others from receiving a nasty surprise!
>>
>> All best regards,
>> Bob
>>
>>
>>

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[neonixie-l] Re: Some terrible luck...

2022-01-13 Thread Robert G. Schaffrath

At this rate, in a few years, they may catch up to Rodan CD47's.

On Thursday, January 13, 2022 at 9:03:00 AM UTC-5 Richard Katezansky wrote:

> Hi,
>
> I have 3 with sockets.  Given the odd number they will probably just sit 
> around forever.  I'm located in Montreal, Canada.  Make me an offer.
>
> Richard
>
> On Wednesday, 12 January 2022 at 13:01:47 UTC-5 Jim KO5V wrote:
>
>> Well, This may be the dumbest question of the year - and it's still very 
>> early.
>>
>> I packed my MOD-SIX_7971 clock and it's tubes away so I can do some 
>> extensive remodeling. The tubes were carefully packaged in a separate 
>> box.Unfortunately, my help dropped a large, heavy box on the tube box, and 
>> broke 5 of the 7 tubes (good thing I had a spare...). It was a legitimate 
>> accident, but I am not sure if my insurance will cover this.
>>
>> So, I need to find four tubes. Apparently, most have now been added to 
>> hoards. During a purge of surplus "treasures" a couple of years ago, I sold 
>> some spares, thinking that the money would be more useful than tubes (and 
>> ham radio stuff, etc, etc)stored in a closet. Oh well...
>>
>> Does anyone have any tubes for sale?
>>
>> Thanks. Jim
>>
>

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Re: [neonixie-l] A pair of Rodan Okaya CD47 / GR414 on eBay (used with green corrosion on one pin).....

2021-11-24 Thread Robert G. Schaffrath

Which is why I am sitting on my NOS B7971 tubes. Someday I think my heirs 
will be pleasantly surprised at the value of the bubble wrapped tubes in 
the carton they are stored in. I already have a note in the box to the 
attention of whomever to do research before they just toss them out and 
some recent eBay auction printouts.

On Monday, November 22, 2021 at 2:54:20 PM UTC-5 LB wrote:

> Who knows, they might be the ones laughing in 5 years when a single tube 
> goes for $10,000 
>

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Re: Need scan of "Base" in Burroughs typeface (was Re: [neonixie-l] Burroughs 70910)

2021-10-06 Thread Robert G. Schaffrath

I checked some of the old Burroughs documentation and I cannot find an "e" 
either. They only seemed to use the alternate font to spell "Burroughs 
Corporation". I have a PDF scan of catalog 616 (available on the Internet 
and it has no other examples.

Then for fun, I made an image of the logo and uploaded it to several font 
identifiers. Nothing matched 100%. The lowercase "g" appears to be key to 
identifying the font. The tail at the top is unique amongst all the partial 
matches I was able to find. If you are able to match the "g", I think you 
will find the rest of the characters will line up.

On Wednesday, October 6, 2021 at 2:55:46 AM UTC-4 Dekatron42 wrote:

> @Terry Bowman: Please send me a direct email and explain in more detail 
> what you are looking for so I can have a look at my Burroughs material to 
> see if I can find what you are looking for.
>
> /Martin
>
> On Wednesday, 6 October 2021 at 00:16:32 UTC+2 Terry Bowman wrote:
>
>> The "Burroughs 70910" topic has me excited because of this picture...
>>
>>
>> Short version:
>>
>> I need the word "Base" set in the Burroughs typeface. The problem is that 
>> the words "Burroughs Corporation" don't contain the lowercase letter "e". 
>> I've searched everywhere online for text containing the "e" and until now 
>> I've come up empty. This box has exactly the sort of text I need except for 
>> one thing: it's too bold.
>>
>> Does anyone else have printed material from Burroughs containing an "e"? 
>> And hopefully a lighter weight? Not that I'd turn down anything in 
>> bold—I'll take everything I can get.
>>
>> I need a hi-res scan in a lossless format such as TIFF so that I can 
>> trace the letters in Illustrator. The original needs to be as large and 
>> clear as possible. Most of the scans of documents and boxes that I already 
>> have are too small and/or the ink bled too far into the paper.
>>
>>
>> More info:
>>
>> Part of corporate branding is selecting a typeface that will be used for 
>> letterheads, documents, packaging etc. Burroughs used a version of the 
>> typeface Clarendon. I've been to all of the font search sites and while 
>> there are lots of Clarendons available none of them have the unique flavor 
>> of the Burroughs version. While I'm well versed in font editing, management 
>> etc. I don't have the artistic chops to properly alter letters.
>>
>> Burroughs used multiple variants of the Clarendon over the years: 
>> different weights, different serifs and so on. I need all four letters in 
>> exactly the same font.
>>
>>
>> I love the lowercase "s" because it's almost perfectly symmetrical 
>> vertically. Help me Nixie collectors, you're my only hope.
>>
>>
>> Terry Bowman, KA4HJH
>> "The Mac Doctor"
>>
>> Edward R. Murrow: “Who owns the patent on this vaccine?”
>> Dr. Jonas Salk: “Well, the people, I would say. There is no patent. Could 
>> you patent the sun?”—*See It Now*, 12 April 1955
>>
>>

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Re: [neonixie-l] Re: new giant tubes from Dalibor

2021-09-03 Thread Robert

I think he made about 600

Rob

> On 3 Sep 2021, at 15:12, dixter  wrote:
> 
> those are going to be amazing...  can't imagine what they are going to 
> cost  maybe a 1 tube clock instead of 6 tube ? + colon ?
> didn't realize they no longer make the Zen Clock. wonder how many he 
> made
> 
>> On Friday, September 3, 2021 at 8:53:03 AM UTC-5 martin martin wrote:
>> New YT from Dalibor.  I think I want 6 of them!
>> 
>> https://youtu.be/c1ybZcS1dPg
> 
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Re: [neonixie-l] Nixie Nirvana

2021-08-26 Thread Robert G. Schaffrath

$1 for a B-7971?!?! Incredible. The best price I ever saw was late 
1970's/early 1980's when they were still common. As I mentioned in the 
past, I got six NOS B-7971's around that time from Meshna Electronics for 
$5/each IIRC. The used ones were $1 cheaper and I decided to splurge. The 
first eight tubes I got came in pairs on the old stock ticker boards. One 
tube was defective leaving me with seven good ones. I believe I paid 
something like $8/each for the boards. Some from Poly Paks and some from 
Meshna. It has been so long many of the details escape me. I still have 
that "defective" tube that I have been debating about selling. It had 
shorted segments and various attempts at fixing it over they years before 
learning about the "wooden dowel" method that worked resulted in some 
segments getting damaged. Tube still intact and several segments still 
light up so it is useful as a novelty but it will not display all possible 
segments that a good B-7971 will. It is wrapped in bubble wrap sitting in 
an odds-and-ends box which is why I am thinking of parting with it. I am 
not using it.

Robert


On Thursday, August 26, 2021 at 6:36:35 AM UTC-4 Bill Notfaded wrote:

> Jeffrey-
>
> Where there any big Borroughs or NL tubes vertical or round?
>
> Bill
> On Wednesday, August 25, 2021 at 1:46:02 PM UTC-7 Jeffry P wrote:
>
>> Hi Nick,
>>
>> I've been lurking in this group since its creation.  Most of the 
>> discussion is a bit beyond me but interesting nonetheless.  Some members 
>> were asking where the pictures were- I was referring to the pictures listed 
>> on the Facebook group. I have not posted any pictures anywhere. I'm about 
>> halfway through sorting tubes into bins, so that all alike types are 
>> together. Burroughs has the lead as far as variety with National right 
>> behind.Valvo and Amperex are well represented. This coming weekend I should 
>> be able to finish sorting. I'll post some pictures when the sorting is 
>> finished. Thank you to all who have sent encouraging words. I was concerned 
>> that some folks would be out of joint because I went in and got everything. 
>> If you were planning on going to Huntsville for nixies this weekend I 
>> apologize. There were some meters left that someone might be interested in. 
>> I'm referring to the photos on the Facebook page (Harpers Home Estate 
>> Sales). The collection came from Michael Seaton. He had a few posts here 
>> and his name was in his email address.
>>
>> Jeffry
>>
>> On Tue, Aug 24, 2021 at 10:30 PM Nicholas Stock  
>> wrote:
>>
>>> Hi Jeffry, welcome to the group!!!
>>>
>>> As a long time Nixie fan, clock builder, collector etc, I applaud you 
>>> for keeping the treasure trove together. I noted a lot of highly sought 
>>> after goodies in the photos (including a rather *excessive* number of 
>>> old Axiris VU meters!). As a fellow nixie/neon nutcase and one of the 
>>> moderators of the group, let me know if there's anything I(we) can do to 
>>> help you with info, pricing etcthere are a lot of really knowledgeable 
>>> and thoughtful folks on this list and whilst a lot of us are probably 
>>> *agog* at the collection, deep-down we're happy that it is all in one 
>>> place and with someone who knows its value (not just monetarily).
>>>
>>> Cheers,
>>>
>>> Nick
>>>
>>> On Mon, Aug 23, 2021 at 6:16 PM Audrey  wrote:
>>>
>>>> You should give them to me :)
>>>>
>>>> On Mon, Aug 23, 2021 at 9:14 PM Jeffry Portell  
>>>> wrote:
>>>>
>>>>> Yes he and I are the same age. I need to think about where all this 
>>>>> should go in the event of my demise.
>>>>>
>>>>> On Mon, Aug 23, 2021, 3:27 PM Jeff Walton  wrote:
>>>>>
>>>>>> Nice to hear that someone from the group was able to make the trip.  
>>>>>> You are fortunate to have your hands on such a treasure trove of 
>>>>>> antiquities!  Looking forward to seeing photos of the collection.  
>>>>>> Eventually we all have collections that will change hands, some sooner 
>>>>>> than 
>>>>>> others... 
>>>>>>
>>>>>>
>>>>>> *Jeff *
>>>>>>
>>>>>>
>>>>>>  Original message 
>>>>>> From: Jeffry P  
>>>>>> Date: 8/23/21 11:15 AM (GMT-06:00) 
>>>>>> To: neonixie-l  
>>>>>> Subject: [neonixie-l] Nixie Nirvana 
>>>

Re: [neonixie-l] Re: B-7971 single tube device

2021-08-21 Thread Robert


Very nice, how much are the completed units?

Rob

> On 21 Aug 2021, at 05:02, Richard Scales  wrote:
> 
> 
> Hello Bill, 
> I have sold some completed units as well as bare boards (they come in pairs, 
> one is the smart socket and one is for the wemos and HV supply which sits 
> underneath). 
> What is it you are interested in - Just he SMart Socket, the board pair, how 
> many sets or boards?
> I was also thinking about making a more conventional square or oblong shaped 
> one but I too have a stack of the original - with over a dozen already made 
> up so I will be using those - when I get around to that project!
> - Richard
> 
>> On Friday, 20 August 2021 at 17:25:44 UTC+1 Bill Notfaded wrote:
>> Richard-
>> 
>> I like the idea of modernized smartsockets using SMD and more modern parts!  
>> Are you selling these?  I have a bunch of populated and unpopulated original 
>> 7971 smartsockets.  Such a great original idea!
>> 
>> Bill
>> 
>>> On Friday, August 13, 2021 at 8:53:54 PM UTC-7 Richard Scales wrote:
>>> 
>>> Thank you. I'd love to say it was an original idea but it was inspired by a 
>>> case that Roddy Scott once made for a clock which layered  thin wooden 
>>> parts using thick brass pieces between the layers.Originally I had planned 
>>> to have three 'corners' but after some discussion I went to 5 which looks 
>>> nicer and still allows easy access to the USB connector (back right) as 
>>> well as visual access to the two neons at the front, one each side of 
>>> centre.
>>> - Richard
 On Friday, 13 August 2021 at 15:16:15 UTC+1 Jon Blaylock wrote:
 Fantastic use of nixie
 
> On Fri, Aug 13, 2021 at 1:49 AM newxito  wrote:
> Great job, beautiful case!
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Re: [neonixie-l] Red Coated Burroughs B-5092 - looking for some info

2021-07-07 Thread Robert G. Schaffrath

It looks something like this Philips ZM1020 on eBay right now:

https://www.ebay.com/itm/402975545372

On Tuesday, July 6, 2021 at 9:35:31 PM UTC-4 Pramanicin wrote:

> I've seen a few of the Z560 series tubes and ZM1020's with this kind of 
> half-assed coating, so I wonder if you have a lab sample or similar??
>
> Cheers,
>
> Nick
>
> Sent from my iPhone
>
> On Jul 6, 2021, at 15:43, Jeff Walton  wrote:
>
> 
>
> I'd say homemade.  Burroughs didn't do anything half-way...
>
> Jeff 
>
>  Original message 
> From: Bartek Ogryz  
> Date: 7/6/21 5:02 PM (GMT-06:00) 
> To: neonixie-l  
> Subject: [neonixie-l] Red Coated Burroughs B-5092 - looking for some info 
>
> Hi!
> I'm new here and this is my first post. My name is Bartek and I'm in love 
> in Nixie's. I'm collecting Nixie/Pixie/Numitron tubes, my small collection 
> counts around 90 different models of tubes. Today I would like to ask a 
> question.
>
> I recently got a Burroughs B-5092 tube. What is strange in it, that it's 
> red coated! The coating looks very nice (except the scratches), I believe 
> it's not homemade. The printing is also (partially) covered with paint. You 
> can see details on the foto (blue reflections are from my monitor).
>
> I had no idea, that B5092 was also made in red coated version. I can't 
> find any info about them on the internet. I'm wondering, if theese tubes 
> were in mass production, or is it a lab sample. I'll be thankfull for any 
> info.
>
> <20210706_220354.jpg>
> <20210706_220426.jpg>
> <20210706_220527.jpg>
>
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> 
> .
>
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> 
> .
>
>

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Re: [neonixie-l] B-7971 Smart Socket - Round Version

2021-06-27 Thread Robert G. Schaffrath

Is there a link about this socket? I have enough spare B-7971's to complete 
one.

On Sunday, June 27, 2021 at 1:54:50 AM UTC-4 tntm...@gmail.com wrote:

> Very nice
>
> On Sun, Jun 27, 2021 at 1:53 AM Richard Scales  
> wrote:
>
>> [image: IMG_20210627_064608.jpg]
>>
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>>  
>> 
>> .
>>
>

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Re: [neonixie-l] IN-13 tubes

2021-06-23 Thread Robert

How many analysers did you end up making?


Rob

> On 23 Jun 2021, at 17:15, Nick Andrews  wrote:
> 
> 
> Well since I am an admitted hoarder of cool shite, I'm interested.  I have 
> some on order already, but more is better, right?  Do you have an idea of 
> what you want for them?  And where are you?  Your email suggests you're in 
> the UK, so shipping cost could be a factor.  I am in San Antonio.  If 
> multiple parties want some, it might be cost effective to ship all of them 
> going to the USA in one package and then relay them out.  I'd be willing to 
> help with that if that is the case.  Thanks!
> 
>> On Tue, Jun 22, 2021 at 5:43 AM Paul Parry  
>> wrote:
>> 
>> Having a sort through, and came across 35 unused IN-13 Nixies, and 12 that 
>> have just had extended wires soldered on, so 47 in total. I used to make 
>> Spectrum analysers, and then couldn't get the tubes. These are no use to me 
>> now and will just sit in a drawer, so open to offers or even better, swaps 
>> for regular Nixies :)
>> 
>> 
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Re: [neonixie-l] Prices, seriously?

2021-06-12 Thread Robert G. Schaffrath

I noticed the upward trend in early fall of 2019. I had just gotten back 
into Nixie's so I figured I had better jump and I went out and got a batch 
of NOS IN-12B, IN-17 and IN-15A/B's. The IN-15's are really just a 
curiosity item for their symbols.

As people have noted, they are not making them anymore and the supply is 
drying up. Unless someone stumbles across a hoard of a million 
IN-12's/IN-14's/IN-18's, etc. in an abandoned warehouse in Ukraine, and 
word leaks out, they will not get any cheaper. Just like B7971's. It is 
shocking to see used tubes selling for more than NOS were selling for less 
than two years ago.

On Saturday, June 12, 2021 at 2:07:37 AM UTC-4 nickja...@gmail.com wrote:

> Damn,  I guess I'd only gotten 18 IN-12.  6ea 15a and 15b.  Just put this 
> kit together tonight.  Not bad for around $20 plus tubes. 
>
> On Fri, Jun 11, 2021, 9:29 PM tntmod54321  wrote:
>
>> Yeah, they're going up too, I picked up 20 something to brace for the 
>> inevitable price hike
>>
>> On Fri, Jun 11, 2021, 10:28 PM Mac Doktor  wrote:
>>
>>>
>>> On Jun 11, 2021, at 3:54 PM, tntmod54321  wrote:
>>>
>>> There are still deals to ve found :) maybe it's time to try VFDs haha
>>>
>>>
>>> Precisely why I've been keeping an eye on IV-4s and IV-17s. Hell, they 
>>> have more segments than a 7971.
>>>
>>> More segments than the IN-23. The collectors can have those.
>>>
>>>
>>> On Jun 11, 2021, at 4:30 PM, Nick Andrews  wrote:
>>>
>>> I actually bought some of those 16-segment ones for that very reason!  
>>>
>>>
>>> 18 segments. The "decimal points" are descenders. They make it possible 
>>> to do most of the capital letters in the Cyrillic alphabet.
>>>
>>>
>>> Terry Bowman, KA4HJH
>>> "The Mac Doctor"
>>>
>>> https://www.astarcloseup.com
>>>
>>> “...the book said something astonishing, a very big thought. The stars, 
>>> it said, were suns but very far away. The Sun was a star but close 
>>> up.”—Carl Sagan, "The Backbone Of Night", *Cosmos*, 1980
>>>
>>>
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>>>  
>>> 
>>> .
>>>
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>>  
>> 
>> .
>>
>

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[neonixie-l] CD-47

2021-05-15 Thread Robert

Not mine and suffering from cathode poisoning on some digits 

https://www.ebay.co.uk/itm/194127286995


Rob

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Re: [neonixie-l] Re: Any circuit diagrams for Non-Linear Systems digital voltmeters, especially Model 64?

2021-04-21 Thread Robert Norman

https://youtu.be/9DqZ4nx-8J4?t=1m40s

Rob

> On 21 Apr 2021, at 18:58, Dekatron42  wrote:
> 
> 
> The relays have been sitting inside a separate sound dampened box inside the 
> voltmeter all these years, the box has a very tight fit and the relays also 
> have gold plated contacts for the resistor divider chain, the lamp 
> connections have a very black surface, not like copper at all, more like 
> proper long life telephone relays which sometimes use a silver-palladium mix, 
> or some other silver-mix. All of the resistors in the voltage divider chain 
> are very special types put in colour coded plastic cans on the circuit board, 
> one colour for each stepper relay. The sound dampening box was removed in the 
> photo above as the seller wanted to show the relays, the gold plated contacts 
> and the black ones can be seen in the photo. I've included some more closeup 
> photos here, as well as one with the sound dampening box in place.
> 
> @Petehand: I was also extremely lucky in finding the magazine for sale where 
> your scanned pages were from, so in a while I will have the original magazine 
> too!
> 
> /Martin
> 
>> On Wednesday, 21 April 2021 at 19:07:31 UTC+2 gregebert wrote:
>> Stepper relays are likely to be a problem. The first clock I made, back in 
>> 1980, was a cannibalized voltmeter that used stepper relays and incandescent 
>> edge-lit numbers. The relays had intermittent connection issues despite many 
>> careful attempts to clean them. I literally abandoned this clock in 2005 
>> when I moved to a different worksite.
>> 
>> Most likely you will need to clean the contacts, coat them with a conducive 
>> grease, and take steps to prevent dust/dirt from collecting on the grease. 
>> TV tuners (remember those ?) were notorious for having the same problem.
>> 
>>> On Wednesday, April 21, 2021 at 9:19:24 AM UTC-7 Dekatron42 wrote:
>>> Thank you so very much this document, it will be a great help to get it up 
>>> and running properly!
>>> 
>>> I might even do a complete circuit diagram now that I know how most parts 
>>> are hooked up from the article.
>>> 
>>> I'll start by checking all of the electrolytics before I dare to power it 
>>> up, all of those big black canisters are the electrolytic ones. What I 
>>> first thought was a crystal in its crystal oven turns out to be the dual 
>>> zener diodes in the oven.
>>> 
>>> /Martin
>>> 
 On Wednesday, 21 April 2021 at 17:57:28 UTC+2 petehand wrote:
 I can offer you this, from a 1963 Electronics World magazine. It's not a 
 complete manual or diagram but it does explain the principles.
 
 You're a lucky guy. I greatly covet one of these.
 
> On Tuesday, April 20, 2021 at 5:31:42 PM UTC-7 Dekatron42 wrote:
> I've been Googling and asking everyone who has turned up for information 
> about a circuit diagram for my recent purchase of a Non-Linear Systems 
> Digital Voltmeter model 64 (stevenjohnson.com and nonlinearsystems.com) 
> without getting a response from anyone so I thought I would ask here if 
> anyone has any circuit diagrams for this model or other similar models.
> 
> It is almost like the Model 481 that seems to be quite common, but it 
> does only have four of the selector switches so there is no automatic 
> polarity indication but a switch on the front to change the plus/minus 
> sign in the display.
> 
> One of the digits is not lighting up at all even though that selector 
> switch is working, otherwise I was told it should work perfectly as the 
> other digits should show the correct measurement. I haven't powered it up 
> myself, the previous owner did, and I'd like to repair it. It wouldn't be 
> complicated to reverse engineer it but getting hold of proper 
> documentation would be very welcome.
> 
> /Martin
> 
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> 
> 
> 

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Re: [neonixie-l] OT: How to convert composite video into TTL?

2021-04-13 Thread Robert G. Schaffrath

Back in the 1990's I purchased new surplus CRT based viewfinder module 
designed for a camcorder from a surplus electronics vendor. Was rather 
inexpensive. It has a tiny 1" B CRT and takes composite NTSC video. The 
only issue with it was the image was mirrored due to it being designed to 
be viewed indirectly via a mirror that would cause the image to display 
correctly. It was a simple matter to swap two wires to make it work 
correctly for direct view. IIRC, it would run on a common 9V battery. This 
post now has me wondering where I put it. I know I never sold it or threw 
it out. Big problem these days is where to get an NTSC video source. The 
only things I currently have left are an old 8mm camcorder and a digital to 
NTSC converter box that were common when the US went all digital.

On Tuesday, April 13, 2021 at 8:41:58 AM UTC-4 jrehwin wrote:

> Small monochrome monitors used to be really common as viewfinders, 
> security monitors, etc. They're less so today, but they're still out there. 
> Let me know if you have a need for one. 
>
> - John 
>
>

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Re: [neonixie-l] OT: How to convert composite video into TTL?

2021-04-12 Thread Robert G. Schaffrath

Yes the work done to get color into the 3.58MHz (well something 
like 3.579545MHz) was incredible. The math involved in transmitting the RGB 
info is truly amazing. And it was all decoded through analog circuitry! No 
digital processing involved. Quite a feat for its day. In fact, NTSC TV's 
were pretty much Analog Computers that received a complex signal and 
processed it with discrete components into a viewable picture. The real 
complexity of the system was in the TV transmitter that had to provide a 
perfectly timed and on frequency signal that the TV would receive. When 
turned on, the TV had to be somewhere in the ballpark in order to latch on 
to the signal. But upon receiving that broadcast signal, the circuitry 
would lock its oscillators onto the horizontal and vertical timing pulses 
and be in sync (of course you had to adjust the horizontal and vertical 
hold to give the TV a fighting chance of locking on). NTSC (Never Twice the 
Same Color) was a bit of an issue with needing Color and Hue controls that 
adjusted the TV's reception of the 3.58MHz color carrier. PAL eliminated 
the need for those controls.

Of course now with digital TV, the idea of a vertical and horizontal hold 
controls, along with hue and color, seems so quaint!

On Sunday, April 11, 2021 at 9:26:36 PM UTC-4 gregebert wrote:

> At least it's just monochrome. NTSC composite video with color is rather 
> complex, though I must say it is also ingenious in that it is 
> backward-compatible to monochrome and packs so much video information into 
> a 3.58Mhz bandwidth. Similar for PAL, though higher bandwidth.

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Re: [neonixie-l] Re: Now, here's a bargain

2021-04-07 Thread Robert G. Schaffrath

I haven't sold on eBay in ages but I bought some items from time-to-time 
that are often "Out of Stock" but still have their history going back a 
year or more. Didn't realize it was possible to keep the entry live while 
the item was unavailable. Crazy thing is an eBay search does not show them 
in the out-of-stock state and if not for having them on my watchlist, I 
would not be able to find them.

On Tuesday, April 6, 2021 at 3:05:40 PM UTC-4 Alex wrote:

> eBay makes it hard to pause a listing, though you can set qty to zero in 
> reality, though people don't know that (you need to set up zero qty persist 
> in settings, else the listing vanishes forever and you loose the valuable 
> sheep heading sales history... There is a lot of subtlety to eBay selling 
> and banging an extra zero on to reserve something is a common practice...
>

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Re: [neonixie-l] Re: ZM1200

2021-03-21 Thread Robert

How rare are these?


> On 15 Mar 2021, at 20:27, Robert Norman  wrote:
> 
> Yes I believe so
> 
> 
> 
>>> On 15 Mar 2021, at 20:25, Jon  wrote:
>>> 
>> These are from May 1970 and Feb 1971 I think.
>> 
>> Jon.
>> 
>>> On Monday, March 15, 2021 at 7:53:44 PM UTC Robert wrote:
>>> I have two here, one branded RTC and one Mullard Holland, both have tags 
>>> inside, one reads 9172 and the other 11482 with these codes
>>> 
>>> 
>>> 
>>> 
>>>>> On 15 Mar 2021, at 19:40, tntmod54321  wrote:
>>>>> 
>>>> For sure, US nixies cost so much at this point. 
>>> 
>>>> 
>>>>> On Monday, March 15, 2021 at 3:39:11 PM UTC-4 Pramanicin wrote:
>>>>> I'd say they didn't make enough..although, thank  
>>>>> that Russia, Ukraine etc kept making nixies for years past their 
>>>>> 'time'1992 is the latest date IN14 tube I havethat's nuts.
>>>>> 
>>>>>> On Mon, Mar 15, 2021 at 12:01 PM Kevin A. 
>>>>>>  wrote:
>>>>>> It's heartbreaking, but I have hope that the neon community will save as 
>>>>>> many as possible, and light them up for all to enjoy! 
>>>>>> 
>>>>>>> On Mon, Mar 15, 2021, 2:50 PM tntmod54321  wrote:
>>>>>>> Why would you say that? Now I wont be able to stop thinking about 
>>>>>>> that...
>>>>>>>> On Monday, March 15, 2021 at 2:47:24 PM UTC-4 gregebert wrote:
>>>>>>>> and I've always wondered how many nixie tubes ended-up in 
>>>>>>>> landfills.
>>>>>>>> 
>>>>>>>>> On Monday, March 15, 2021 at 10:42:37 AM UTC-7 Robert wrote:
>>>>>>>>> How many of these were made, approx? 
>>>>>>>>> 
>>>>>>>>> Thanks 
>>>>>>>>> Rob 
>>>>>>> 
>>>>>>> -- 
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>>>>>>> an email to neonixie-l+...@googlegroups.com.
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>>>>>> 
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>>>>> 
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>>>> 
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Re: [neonixie-l] Re: ZM1200

2021-03-15 Thread Robert Norman

Yes I believe so



> On 15 Mar 2021, at 20:25, Jon  wrote:
> 
> These are from May 1970 and Feb 1971 I think.
> 
> Jon.
> 
>> On Monday, March 15, 2021 at 7:53:44 PM UTC Robert wrote:
>> I have two here, one branded RTC and one Mullard Holland, both have tags 
>> inside, one reads 9172 and the other 11482 with these codes
>> 
>> 
>> 
>> 
>>>> On 15 Mar 2021, at 19:40, tntmod54321  wrote:
>>>> 
>>> For sure, US nixies cost so much at this point. 
>> 
>>> 
>>>> On Monday, March 15, 2021 at 3:39:11 PM UTC-4 Pramanicin wrote:
>>>> I'd say they didn't make enough..although, thank  
>>>> that Russia, Ukraine etc kept making nixies for years past their 
>>>> 'time'1992 is the latest date IN14 tube I havethat's nuts.
>>>> 
>>>>> On Mon, Mar 15, 2021 at 12:01 PM Kevin A.  
>>>>> wrote:
>>>>> It's heartbreaking, but I have hope that the neon community will save as 
>>>>> many as possible, and light them up for all to enjoy! 
>>>>> 
>>>>>> On Mon, Mar 15, 2021, 2:50 PM tntmod54321  wrote:
>>>>>> Why would you say that? Now I wont be able to stop thinking about that...
>>>>>>> On Monday, March 15, 2021 at 2:47:24 PM UTC-4 gregebert wrote:
>>>>>>> and I've always wondered how many nixie tubes ended-up in landfills.
>>>>>>> 
>>>>>>>> On Monday, March 15, 2021 at 10:42:37 AM UTC-7 Robert wrote:
>>>>>>>> How many of these were made, approx? 
>>>>>>>> 
>>>>>>>> Thanks 
>>>>>>>> Rob 
>>>>>> 
>>>>>> -- 
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>>>>> 
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[neonixie-l] ZM1200

2021-03-15 Thread Robert

How many of these were made, approx?

Thanks
Rob

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[neonixie-l] Re: Assembled PCB Nixie Clock - Not from China

2021-02-06 Thread Robert G. Schaffrath

On Friday, February 5, 2021 at 6:26:36 AM UTC-5 Ian Sparkes wrote:

> So, it started like this: I liked the Zirffa style Chinese boards - I 
> thought the hardware was pretty good, but the firmware was really 
> primitive. I was going to set about re-writing the firmware for these 
> boards, but them came up with the idea of simply taking the hardware 
> approach and using my existing firmware on it.
>

I have two Zirffa style boards. One for IN-12's and the other for IN-14's. 
I agree that while the hardware is pretty good (more details follow) the 
firmware is really primitive.

The IN-12 hardware is wonky in that if a digit is blanked, or the whole 
clock is off in night mode, there is a parasitic glow from various 
elements. As such, I have to leave all digits powered at all times. Also, I 
find it will drift a second or two over a week.

Meanwhile I have an IN-14 board that I use with Rodan Gr-111Pa tubes. I 
replaced the anode resistors with 18K to give the tubes the needed 2mA to 
drive them properly. That board firmware is also primitive but I am stunned 
at the accuracy of the clock chip. It runs for weeks and stays on the 
second. No idea why that board should be so accurate. When the clock turns 
itself off at 10 PM, there is no parasitic glow.

It is a shame the firmware on those boards is locked down. The hardware had 
such potential.

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Re: [neonixie-l] Re: B7971's on the bay....

2021-01-26 Thread Robert G. Schaffrath

I wish the B7971 kits that pop up from time to time were not so expensive. 
I have enough of the very expensive parts (the tubes) but I missed out on 
the boards years ago. I do not fire up my old MM5311 based clock much, 
built in 1979/1980, as the multiplexing whine bothers me now. The six tubes 
are of course the most valuable parts on it. I do have plenty of ZM1022 and 
IN-12B clocks to keep me busy as well as plans to utilize some more of my 
Rodan Gr-111Pa tubes at some point. They are pin compatible with IN-14's 
but require a lower value anode resistor.

On Tuesday, January 26, 2021 at 10:19:39 AM UTC-5 gregebert wrote:

> Despite it's "ugliness", the 7971 does support alphanumeric characters 
> whereas the 568m does not. That, along with their massive size, is why I 
> made a clock out of them a few years ago, thankfully when those tubes were 
> cheaper.
>
> As far as beauty is concerned though, the 568m tubes are stellar. The 
> other thing I found out is that despite being only 10mm taller than a 
> much-cheaper IN-18, the 568m tubes appear much larger as well because the 
> numerals are wider than the IN-18. I hope to have my 6-tube R|Z568m clock 
> finished in a few months; the handmade wooden case is a lot of work, and 
> I'm killing myself with all of the nostalgic junkbox parts I'm stuffing 
> into it, such as illuminated pushbuttons from a vacuum-column tape drive 
> and a 13-character/9-segment display.
>
> On Tuesday, January 26, 2021 at 1:55:49 AM UTC-8 w...@kitsunegari.net 
> wrote:
>
>> If I had to spend $150 on a single tube I'd choose the R|Z568M from 
>> Dalibor.
>> Way more aesthetically pleasing than these B7971 tubes in my opinion.
>> On Monday, January 25, 2021 at 6:10:49 PM UTC+1 Paul Andrews wrote:
>>
>>> That is a very nice clock. If only I had that kind of disposable income. 
>>> I probably would have if I didn't fritter it away on smaller things.
>>>
>>> On Sunday, April 5, 2020 at 1:37:20 PM UTC-4 Pramanicin wrote:
>>>

 Antenna MOD:)

 Sent from my iPhone

 On Apr 5, 2020, at 10:16, Michail Wilson  wrote:

 The first link shows a little poisoning on the underscore.

 The second link is mine.  They went for $220 a tube.

 I only posted for those people that really really really need one. (Did 
 expect a purchase of more than 1 at a time.)

 I will post more, but again, only meant for people that don’t want to 
 wait for a good/fair price.  In fact, I recommend people NOT buy from me 
 and should wait as better deals always show up, but they have to fear the 
 ‘untested’ ‘asis’ auctions.

 Another note is that I provide a video of each tube working in a clock 
 and do a segment test to prove each are perfectly working.  And, I write 
 on 
 the tube in video and seal each box with my version of a seal so they know 
 what they see is what they get.  Example…

 “The following two videos are of your tubes.
 First video shows testing of all six tubes and markings...
 https://youtu.be/outZRHTZBao

 Second video shows packaging of the six tubes and my form of seal
 https://youtu.be/kL83gfLtJro”

 Yes, I have a couple of clocks with the antenna tubes.  

 Michail Wilson

 206-920-6312 <(206)%20920-6312>

 *From:* neoni...@googlegroups.com [mailto:neoni...@googlegroups.com] *On 
 Behalf Of *fax_awd
 *Sent:* Sunday, April 5, 2020 8:57 AM
 *To:* neonixie-l
 *Subject:* [neonixie-l] Re: B7971's on the bay

 another b7971 on ebay todayfirst day already over 180USD per tube...

 https://www.ebay.com/itm/Two-Giant-15-segment-Burroughs-B-7971-Nixie-Tubes-with-sockets/303531498958?hash=item46abe31dce:g:n~0AAOSw7MNeh~rG

 https://www.ebay.com/itm/Burroughs-B7971-B-7971-15-Segment-Alphanumeric-Nixie-Tube-TESTED-USA-Stock/123727599571?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649

 someone bought six recently too..i believe the price should be over 
 USD200 per tube...

 people gone crazy...

 Pramanicin於 2019年11月22日星期五 UTC+8上午7時04分16秒寫道：

 For those still in the *hunt*...

 https://www.ebay.com/itm/Pair-Burroughs-B-7971-Nixie-Alphanumeric-15-segment-Display-Tubes-3-/352860696487?&_trksid=p2056016.l4276

 https://www.ebay.com/itm/2-Burroughs-Ultronic-Systems-B-7971-Nixie-Alphanumeric-15-segment-Display-Tubes/174101582334?hash=item28894351fe:g:Q9UAAOSwzwBd1Oxw

 https://www.ebay.com/itm/Pair-Burroughs-B-7971-Nixie-Alphanumeric-15-segment-Display-Tubes-3/352860696487?hash=item522822efa7:g:m3YAAOSwBi5d1PAw

 As usual, not my listing etc.

 Cheers,

 Nick

 -- 
 You

[neonixie-l] Re: INS-1 neons

2021-01-15 Thread Robert G. Schaffrath

I was able to buy a box of 100 for $15.99 back in 2019. I noticed that the 
glass color tended to vary from almost clear to dark. in the lot I tested a 
few for a period of time and found, oddly enough, the dark colored glass 
ones seemed to fare better. I only tested about 10 bulbs in total but that 
was a casual observation. I find IN-3's to be much flakier. Sometimes they 
display to the rear. Sometimes the leads below glow.

On Wednesday, January 13, 2021 at 4:18:03 PM UTC-5 Pramanicin wrote:

> Anyone had any issues with INS-1 neons showing moving ionization in the 
> bulb (similar to the same problems you can sometimes see with INS-3 neons)? 
> If so, any pointers on how to mitigate this behaviour?
>
> Cheers,
>
> Nick
>

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Re: [neonixie-l] Fascinating film about 1960s colour CRT manufacturing

2021-01-12 Thread Robert G. Schaffrath

I have a 15" Micron branded Trinitron monitor that I purchased back in 1999 
for around $130. Used it for many years. I eventually switched to an LCD 
and brought the monitor to the office for safe keeping. We eventually 
ditched all of the CRT based monitors at the office except for one on a 
rarely used server and my Trinitron. Boss keeps suggesting I toss the 
Trinitron but I still like to use it with certain old computers. Was always 
a fan of the Trinitron technology as the picture always appeared to be more 
vivid and clear to me. Had a Sony KV-1710 and later a Sony KV-1972R TV. 
Kept the KV-1972R going for years. Speaker blew in the late 1980's and I 
got a new one from Sony. In December 1994, the combination power 
supply/audio amplifier module partially blew reducing the high voltage 
supply so the picture shrank. A local electronics dealer had a Sylvania 
branded plug compatible replacement module that fixed it. Then in mid-2008, 
the flyback transformer blew in a cloud of smoke. I already had a flat 
screen TV but I liked the Sony as a backup. Found a cheap replacement 
transformer and got it working again. However, around late 2011, the TV 
started having odd power problems and I suspected bad caps. At that point I 
had owned it 26 years and decided its time was up.

On Tuesday, January 12, 2021 at 3:50:44 AM UTC-5 Alex wrote:

> Crt monitors are getting very collectable, especially Sony Trinitrons. I 
> used to pick pvm monitors up for free from a recycling place and made a 
> wall of them at the back of my workshop. Cleared most of them on eBay last 
> few years, most for over 200gbp each... Even good Trinitron pc monitors are 
> getting good 3 figures now. It's mainly the retro gaming community, SNES 
> and megadrives just don't work well on LCD / digitising monitors due to 
> their habit of skipping every other scanline for processing, plus the lag 
> is noticeable...
> The high end bvm crt monitors are always over 1k now! 
>
>
>
>
> On Tuesday, 12 January 2021 at 04:13:05 UTC Terry Bowman wrote:
>
>>
>> On Jan 11, 2021, at 10:14 PM, J Forbes  wrote:
>>
>> Of course I dohopefully for only a short time. I have 4 of them, plus 
>> 3 monitors. All in the garage waiting for the big moving sale.
>>
>>
>> I'll take any monitors 19" or bigger as long as the shipping is free.  8D
>>
>> My 19" Trinitron isn't going anywhere. I need it for legacy machines. 
>>  lt's too heavy to lift right at the moment, anyway. I strained my shoulder 
>> manhandling a 14" earlier today.  8/
>>
>> It's not the years, it's the mileage. I keep telling myself.  o_O
>>
>>
>> Terry Bowman, KA4HJH
>> "The Mac Doctor”
>>
>> "Never install version point-zero of anything"
>>
>>

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