[neonixie-l] 6lo4v datasheet/voltages?

[Trumpeter]

Hello all, 

I know it is said the 6lo4v is the same as 6lo1i but I do not believe this 
is true.  For one thing, the heater requires a different trimming resistor 
to get it to 6.3v (the resistance of the filament is different between the 
two).   Also, the display is fairly dim, and in a moderately lit room is 
almost unreadable.  If I crank the brightness it will get a bit brighter 
but will bloom.  

I wonder if this could be an issue of voltages or is this just a byproduct 
of the phosphor type?   I am using Howards board which I believe outputs 
300 volts or so.   I really like this little display it would be great if 
it was more usable. 


-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/6c2b050b-2388-4937-8f83-73a60fd80e33n%40googlegroups.com.

[neonixie-l] Re: Showing off my CRT clock case design

[Trumpeter]

Thanks!  I am rather proud of it. 

I was chasing a problem I thought I had with the capacitive touch sensor 
spontaneously activating the clock.  I assumed the problem was with the 
size of the "sensor" (in this instance the entire case is the sensor) 
somehow causing the circuit to activate due to some unknown condition, 
temperature change, humidity change,  static electricity, etc.  I was 
unaware this particular clock board has a feature where it can be set to 
activate at a predetermined time,  turns out that was the cause!  Took a 
few days of being home to notice it happened at the same time every day.  
On Monday, September 6, 2021 at 6:00:13 AM UTC-7 dixter wrote:

> Thats great looking...  
>
> On Sunday, September 5, 2021 at 7:43:27 PM UTC-5 Trumpeter wrote:
>
>> Hello all, 
>>
>> I thought I would show off a project I have been contemplating for some 
>> years and only recently had time to work on it.  The chassis is made from 
>> copper sheet and fastened with rivets.   In place of the display on/off 
>> switch, I have installed a capacitive touch module so I can toggle the 
>> display on and off by simply touching anywhere on the metallic case.  The 
>> actual clock electronics are howchon's 4.4 kit.  I am quite pleased with 
>> the result and figured you all would appreciate it.  
>>
>

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/8567795a-dd2d-4330-ba7e-444ade1a7bbcn%40googlegroups.com.

Re: [neonixie-l] What is going on?

[Trumpeter]

Hopefully they don't catch on to all the test equipment with nixies in 
them...nothing will be spared.  

On Tuesday, September 7, 2021 at 9:51:52 AM UTC-7 nickja...@gmail.com wrote:

> Haha, that was a joke referring to overblown hype.  But construction 
> materials and labor are in short supply in the real world.
>
> On Tue, Sep 7, 2021 at 11:46 AM Audrey  wrote:
>
>> I dont think covid is increasing rhe prices of that one tube so 
>> dramatically...
>>
>> On Tue, Sep 7, 2021, 12:45 PM Nick Andrews  wrote:
>>
>>> It's the new covid math.  Inflated perceptions and values for 
>>> everything!  Seriously, we are estimating construction costs at +40% right 
>>> now, especially in VA hospitals.  It's insane.
>>>
>>> On Tue, Sep 7, 2021 at 9:12 AM Nicholas Stock  wrote:
>>>
 9 x NL900 tubes just sold for $609 on eBay. That is insane. They're 
 literally NL840's with a flat top. $609. 


 -- 
 You received this message because you are subscribed to the Google 
 Groups "neonixie-l" group.
 To unsubscribe from this group and stop receiving emails from it, send 
 an email to neonixie-l+...@googlegroups.com.
 To view this discussion on the web, visit 
 https://groups.google.com/d/msgid/neonixie-l/CAOX%2BRHL-hPOJ0gMf2GVU3XDJvxXOZsTLf%2B8xfAAF%2B3qVtxrV2Q%40mail.gmail.com
  
 
 .

>>> -- 
>>> You received this message because you are subscribed to the Google 
>>> Groups "neonixie-l" group.
>>> To unsubscribe from this group and stop receiving emails from it, send 
>>> an email to neonixie-l+...@googlegroups.com.
>>> To view this discussion on the web, visit 
>>> https://groups.google.com/d/msgid/neonixie-l/CAJD4P-jY7OAfc5OWi3yXc7wHcqHV8cLf%3DNmfC8EMXvzidrvemg%40mail.gmail.com
>>>  
>>> 
>>> .
>>>
>> -- 
>> You received this message because you are subscribed to the Google Groups 
>> "neonixie-l" group.
>> To unsubscribe from this group and stop receiving emails from it, send an 
>> email to neonixie-l+...@googlegroups.com.
>>
> To view this discussion on the web, visit 
>> https://groups.google.com/d/msgid/neonixie-l/CAPDJQ6BvfbS%2B066MpvGs%3Dj8PK4zv9jfSfHTYnggOOw%3DHs7F-5w%40mail.gmail.com
>>  
>> 
>> .
>>
>

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/108c1644-2f24-4860-8b92-02030465594bn%40googlegroups.com.

[neonixie-l] Re: Well I tried, big tubes on ebay this am

[Trumpeter]

Yes. Twice now I have had to replace an in17 in my pv electronics "frank 3" 
clock after one of my kids tipped it over. Just the weight of it was enough to 
smash the face.  The 4 in12 were fine. 

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/7e2c04bf-95ba-4448-9a19-fdf18fb61183%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[neonixie-l] Re: Well I tried, big tubes on ebay this am

[Trumpeter]

Just a note on the in17, the glass is SUPER thin. It takes hardly a bump to 
break them. 

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/02b5b75b-4886-4b6d-a2ca-31edc9e35abb%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[neonixie-l] Re: Well I tried, big tubes on ebay this am

[Trumpeter]

I hope they are fully functional! I was thinking of making them into  big 
thermometer display.  

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/56d12c02-4453-457a-9103-46c00d08d07f%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[neonixie-l] Well I tried, big tubes on ebay this am

[Trumpeter]

Saw these pop up on ebay. I guess they are rodan CD27? The envelope looks 
different than  pics of CD27 I have seen.  Im suprised they went for so much 
considering they may be doa, but maybe someone can see something I can't?

http://www.ebay.com/itm/Vintage-Pair-of-large-Nixie-tubes-3-034-diameter-/263011507278?

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/375f3beb-0e6f-42a0-b2ce-e32e401bdc9a%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

RE: [neonixie-l] Pulsed DC vs direct DC in cathode poisioned

[Trumpeter]

I replaced the wall wart with a salvaged laptop supply that is rated at 12v 
2amps. Maybe this will help.

I did a lot of depoisioning over the last few days and the tubes (six in total) 
 are mostly clear now so it will be interesting to see if they start poisioning 
again.  They are all 1981 dated tubes purchased as nos. 

To reinterate:

HV supply is putting out 170v 
5mA after the annode resistors measured with a multimeter.   

I have not taken a voltage before and after the anode resistor (10k) but 
perhaps I should?

I have an entire box of 1988 and 1991 dated tubes at my disposal but I'd rather 
not simply replace these expensive tubes especially if my problem may be with 
the clock, for fear of ruining another batch. 

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/195383ae-3b60-4694-878c-a0bcd3290b9e%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Re: [neonixie-l] Pulsed DC vs direct DC in cathode poisioned

[Trumpeter]

Luka that is why I am investigating further. If it was the tubes loosing gas 
why amy I able to heal them? 

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/527b2a11-b6a0-4f80-8444-7f1cbb5cda31%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Re: [neonixie-l] Pulsed DC vs direct DC in cathode poisioned

[Trumpeter]

I'll give another wall wart a try. I hadn't thought of that.

On the subject of scopes and grounding, is there some reading I should do? I do 
like to be cautious around these high voltages. 

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/92046177-2549-4290-b7a0-3744db8824c5%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Re: [neonixie-l] Pulsed DC vs direct DC in cathode poisioned

[Trumpeter]

I'm not sure what could be wrong with the clock that would cause the cathode 
poisioning.  I have measured 5mA to the annodes which is in spec. The hv PSU is 
cranking outhe 170v. What else should I check? 

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/e68a0846-5d97-49db-9589-5d383d0824a3%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Re: [neonixie-l] Pulsed DC vs direct DC in cathode poisioned

[Trumpeter]

Slot machine effect every 10min. Tubes were NOS but I wonder if I got a bad 
batch. I guess I should buy a scope, any reccomendations for an economical 
model that will get the job done?

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/380294f8-d0c3-4e3a-83ff-bc2d21a44dcd%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Re: [neonixie-l] Pulsed DC vs direct DC in cathode poisioned

[Trumpeter]

If I lift the annode resistor I can take a measurement in line between  the 
resistor and where it is soldered to the board no? Maybe I'm doing this wrong? 

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/b2a8958a-4319-43e3-beba-9c5623d50304%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[neonixie-l] Re: Pulsed DC vs direct DC in cathode poisioned

[Trumpeter]

I'll do my best, I am not an electrical engineer, just a hobbiest so my answers 
may be frustrating to some. 

1) Measured between the annode and anode resistor.

2) On the clock I dont know, I'd have to lift the resistor again and check. On 
my heathkit 5mA is about 140ish volts. I have a 10k potentiometer installed 
between the PSU and annode. 

3) No idea, I don't have a scope. 

5) I have discussed this issue with the creator. Chalked up to in18 being prone 
to poisioning.  I'd prefer not to mention the design. My intention is not to 
call into question the design, rather discuss pulsating vs continuous dc. 

6) Healing was done 10mA at about 149v for 30 min-2 hours depending. I expect 
their ability to heal will diminish. 

7) These are all 1981 tubes. Some are failing, some are chugging along 
seemingly without issue so far. (Clock running since January 2017) 

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/3d0ceb97-d5e2-4c3a-8470-ac2fe5b99d67%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[neonixie-l] Pulsed DC vs direct DC in cathode poisioned

[Trumpeter]

Hello gents,

Some of you may remember the issues I have had with cathode poisioning on my 
in18 clock.  I have been using a heathkit ip17 to repair the cathodes which has 
had some success, though the positioning has creeped back in most cases.

One thing I have noticed is the tubes seem to light better/more evenly with the 
dc current from the ip17 than the PSU in the clock.  It has had me wondering if 
there is something to the pulsating dc used in these modern clocks to control 
brightness, perhaps this can cause some tubes to develop poisioning more 
quickly?  I ask because I can have a tube run for hours on the ip17 at 5mA then 
on the clock at the same current the same digit is poisioned within an hour or 
less. Why wold this occur? 

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/cd83a1ab-d6f1-414c-a481-6ea84d151f15%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Re: [neonixie-l] Re: In18 displaying cathode poisoning after 1000hrs or less.

[Trumpeter]

Correction it's set at 170v. 

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/8dbc9a60-e8c2-48a6-9bd3-237b4e3dd89e%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Re: [neonixie-l] Re: In18 displaying cathode poisoning after 1000hrs or less.

[Trumpeter]

I did not scope it but it is a direct drive not multiplexed.  I don't have a 
scope yet.  I did measure the power supply is putting out 173 volts, where I 
set it when I built the clock.  

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/70a631ae-e173-4267-9ebb-2386648b9f5d%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Re: [neonixie-l] Re: In18 displaying cathode poisoning after 1000hrs or less.

[Trumpeter]

Hi folks, 

I have had some time to troubleshoot my clock.  I found that when running in 
night mode the tubes are supplied with around 1 mA, and when in day mode are 
supplied 5 mA.  These readings are taken between the annode resistor (10k) and 
annode.  My understanding is the tubes should receive between 4-6 mA.  Could 
the lower night mode current be causing the problems with positioning? I did 
confirm the tubes are suffering poisioning because I have been able to 
rejuvenate them by running the offending digits at 10 mA for between 30 min to 
3 hours.  I'm thinking of running the clock on day mode continuously to see if 
the tubes begin to heal themselves.  Thoughts? Anything else I should be 
looking at? 

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/9a75cb3d-6e91-4fcc-9827-a275dda57385%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Re: [neonixie-l] Running my spectrum IN18 at 175 volts

[Trumpeter]

The heathkit ip17 has variable voltage and current so I plan to go 170v at 8mah 
and see what happens.  I'm not savvy enough at this point to mess with 
resistors on the clock. 

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/fce49ec0-863b-4f93-9ef3-6352d13f4308%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

RE: [neonixie-l] Running my spectrum IN18 at 175 volts

[Trumpeter]

OK, I guess I thought the increased voltage would also slightly increase 
current.  Go easy I am a rank amateur:) 

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/0bceb9c0-f5fa-439d-94db-318cae987ff6%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[neonixie-l] Running my spectrum IN18 at 175 volts

[Trumpeter]

Hello all,

I decided to see what effect turning the voltage from 170 to 175 would have on 
my fadding digits.  I do not have a current rating and have not taken a 
measurement (partly because I have not had time to break out the soldering iron 
the last week or so).  My hope is this may reverse the cathode poisioning. I 
observed no change so far. Thoughts? Good/bad idea?

I have a heathkit IP17 on the way and even have a recap kit for it ready. I'll 
use that to try a more direct approach if this higher voltage idea turns out to 
be uninspired. 

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/a93793bd-3ff1-48a1-9b21-e5c128c56f70%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[neonixie-l] Russian tube base dimensions

[Trumpeter]

Hello Grahame,

Did the Russians make a lot of different 7 pin bases? I see some Russian 7 pin 
sockets listed on ebay, maybe you could reverse engineer one?

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/b0e8d5b3-e809-45a3-9645-806f438669fa%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[neonixie-l] Re: Some guy offering Rodan CD47 tubes

[Trumpeter]

I am a proponent of the free market and one should sell something for whatever 
someone else is willing to pay. That said, I am doubtful he will get over $2000 
for these tubes, not with fellows like Dalibor making them in new production.

$50 for an IN18 is one thing but $2000 for one tube is nuts. 

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/e809a0de-81ed-4822-819a-095b2238037a%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Re: [neonixie-l] Re: In18 displaying cathode poisoning after 1000hrs or less.

[Trumpeter]

Are you saying the helium from leaking balloon can damage these tubes? My kids 
have a couple in the living room now.

Directed to the community at large: 

I am in search of a spare set of tubes, is it recommended to buy tubes from 
89-93ish? These have a lower failure rate?  Short of messaging sellers out of 
the blue with this request I do not see these listed in that way (by dates).

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/6064c1df-9202-439a-86ed-da277207ae70%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Re: [neonixie-l] In18 displaying cathode poisoning after 1000hrs or less.

[Trumpeter]

Thanks everyone, I'll grab one and give it a go. 

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/7f32bd82-6d09-4c55-b3c4-c462e0c58d53%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Re: [neonixie-l] In18 displaying cathode poisoning after 1000hrs or less.

[Trumpeter]

Jeff, could you reccomend a power supply capable of this procedure? Thank you 
for your input. 

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/16b65d4e-98f8-40c0-a45a-068da673f645%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Re: [neonixie-l] In18 displaying cathode poisoning after 1000hrs or less.

[Trumpeter]

Huh, I notice that the number 8 on two tubes is failing to illuminate in the 
exact same place on the digit. 

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/43a3c121-290c-4a90-b7d2-96e595a2fca8%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Re: [neonixie-l] In18 displaying cathode poisoning after 1000hrs or less.

[Trumpeter]

Oh well I guess I'll run them until the digits are unreadable.  Just bummer 
given the cost of a new set, nothing cool is cheap these days. 

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/d2087e71-e96c-4ddf-9af1-94f6e247e3f6%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Re: [neonixie-l] In18 displaying cathode poisoning after 1000hrs or less.

[Trumpeter]

09 81 is the date code. 

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/8bf315c9-dd9a-47fb-91d8-a6a92e12f6b2%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Re: [neonixie-l] In18 displaying cathode poisoning after 1000hrs or less.

[Trumpeter]

I don't think it's the sockets they are fairly loose fitting. I can rock the 
tubes side to side with little effort. 

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/e98013f9-3e79-4e2c-82c3-cd1bcdcd85eb%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[neonixie-l] In18 displaying cathode poisoning after 1000hrs or less.

[Trumpeter]

Hello all,

I have what was a nos set of tubes in a spectrum 18, running at 170v. At least 
two tubes display incomplete digits.  I have the PIR sensor installed it may be 
even less than 1000 hours.  Could I be doing something wrong or just a bad 
batch of tubes?  They are all the same date code.

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/977e175d-0497-413c-a929-b93602e774e4%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Re: [neonixie-l] IN-2 Lifespan?

[Trumpeter]

I've read that the IN1 will go bad quickly but I've had a set of tubes running 
8 months and they are still going strong, I think maybe it depends on the batch?

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/9611c35e-ee0e-460e-b765-31174709ef53%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[neonixie-l] Any large tube clock kit recommendations

[Trumpeter]

I'll be putting together a spectrum kit in the coming weeks. I love Petes kits, 
very well laid out and easy to assemble for an amateur like myself. 

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/04b266c5-7152-4e0c-8ca4-3cd87ae1a638%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[neonixie-l] Re: FS: IV-4, IV-12, IV-17, IV-26

[Trumpeter]

I'm interested in IN12 but at $1.50 each including shipping, quantity 50-100

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/53c0943f-09d3-4522-b98b-67cd691825f1%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[neonixie-l] Tubes out of the former soviet states....how big is the supply?

[Trumpeter]

I've been slowly hoarding various Nixie tubes mostly out of ten Soviet states, 
due to the rediculiously low prices for those tubes especially the IN12. Any 
idea on how deep the supply is? It seems unending. 

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/0b58258e-1cfa-484f-8ff5-db9ae7fb9a17%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Re: [neonixie-l] Video: How the nixie tube is made

[Trumpeter]

Incredible. I'm amazed this can be profitable, given the obvious time and 
equipment required to produce these. 

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/4a3dd9d7-cfce-4a03-8d00-fae307786002%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Re: [neonixie-l] How hot should a mosfet get?

[Trumpeter]

Hello all,

First off, thank you all for providing input. Truly a great collection of 
knowledgable folks here. 

I ended up removing a mosfet from another kit and installing it in this clock. 
It now runs at a normal temperature, around 90 degrees F or so. I guess it must 
have been a bad part.  Perhaps I fried it when I was soldering...though I am 
careful to limit heat soak. 

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/b2a73897-69bd-4813-8ec2-7ae25a845c08%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Re: [neonixie-l] How hot should a mosfet get?

[Trumpeter]

Should I install a new mosfet and see if a different one runs cooler? Worth a 
try?

How about these for heat dissipation?

http://www.ebay.com/itm/Enzotech-MOS-C1-Copper-MOSFET-Cooler-10PK-/252414079757?hash=item3ac50d330d:m:mb_3I4NWrjGw-R3DDEL2YEA

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/8a8dc2b6-d9de-4919-b6df-1709af317bb5%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Re: [neonixie-l] How hot should a mosfet get?

[Trumpeter]

Looks like it's running around 110-113 deg F. 

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/c40e98bd-69b2-42fa-ab3f-145fbc437ac4%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Re: [neonixie-l] How hot should a mosfet get?

[Trumpeter]

It's an IRFD220 looks like it's resistance is .8 ohms. 

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/060a754d-4817-4b82-9ff7-ed5f25314f26%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Re: [neonixie-l] How hot should a mosfet get?

[Trumpeter]

Thank you for this detailed explaination, even though some is over my head. 

Should I check the resistance between the two joined pins and one of the two 
pins on the other side?  Could the over heating mosfet damage other components 
or will it simply fail? I want to be sure there are not other factors 
contributing to the problem like me installing the wrong resistor but I am 
fairly meticulous during assembly. I assume if something was really out of 
whack the HV supply would not run at all. The clock is functioning but the 
mosfet is getting warm, and I notice it is mostly when all the tubes are 
running at the same time.  Since I will be giving some of these as gifts I want 
to make sure everything is right. 

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/da44f2fa-2b40-474b-934c-207419ddca24%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[neonixie-l] How hot should a mosfet get?

[Trumpeter]

The HV generator is cranking out 171 volts, so it's working I just worry about 
component strain.  This is the PV Kit with the 4xIN12 and 2 IN17. 

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/3d8dfa2b-441c-4ee0-a5d2-5e50da099f20%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[neonixie-l] How hot should a mosfet get?

[Trumpeter]

The one on my newly built kit gets pretty warm. Normal? I'm not an ee so go 
easy on me :)

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/9513a91c-7010-46e8-895b-a70772813fb2%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[neonixie-l] "Hot glue" to insulate tube socket connections?

[Trumpeter]

I found some Google info indicating it is an ok insulator, but I wanted to 
check here before I proceed. These are the small in2/in8 sockets, would be much 
easier than shrink insulation on all those tiny connections.  

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/c7a1b4c8-62bf-46e7-a66c-3773a2486fe2%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[neonixie-l] Nixie tube instrument tuner

[Trumpeter]

I think this would be a fabulous application for Nixie tubes but there is very 
little out there. Not being an electrical engineer, designing one myself is not 
an option.  I did find this one below but no updates and the schematic may as 
well be gibberish to me. Does anyone know if there are any other designs?

https://www.elektormagazine.com/labs/nixie-vfd-guitar-tuner

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/08e0fb90-f957-43b8-80ae-f23529d1d3c6%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Re: [neonixie-l] IN-17 break easily?

[Trumpeter]

I have a lot of my other tubes stored loose in plastic bags (20-30 in a large 
ziplock for instance) then placed inside a box with a label that indicted the 
tube type.  This incident with the in-17 makes me rethink this practice. The 
glass on the in17 is surprisingly thin. 

My wife thinks I'm crazy buying these old Soviet tubes. :) They are neat 
though. 

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/a473c2bf-c224-42d1-b97c-aa3df9def0ba%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[neonixie-l] IN-17 break easily?

[Trumpeter]

Hello all,

I'm new here but this is a great resource, glad I found it. 

When I received my kit (pv electronics kit with 4xIN12 and 2xIN-17) I unwrapped 
the tubes to inspect and placed them back in the box loose, thinking nothing of 
it. When it was time to solder the IN-17s to the board I found that one had a 
shattered face! I'm suprised because the box just sat on my desk for a couple 
days, so the damage must have been caused by another tube simple rubbing up 
against it perhaps when closing the box. Are they really this fragile?

Of course, the IN-17 is the one tube type I have not yet hoarded so off to eBay 
I went.. :facepalm: 

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to neonixie-l+unsubscr...@googlegroups.com.
To post to this group, send an email to neonixie-l@googlegroups.com.
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/9ef005ba-4f8e-4cb9-bef0-0e0f5be42760%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.