Re: [neonixie-l] IN-14 with reversed "6"

Makes you wonder what the production lines for Russian tubes looked likeOn Oct 18, 2024, at 3:54 PM, Nicholas Stock wrote:Whoops...On Fri, Oct 18, 2024 at 3:47 PM Audrey wrote:Interesting manufacturing defect 😁 -- You received this message because you are subscribed to t

Re: [neonixie-l] Broken Exhaust Tip?

Lots of ITT tubes have a similar looking smashed down evacuation nipple, I’d guess that it’s probably fine and intact On Oct 10, 2024, at 10:05 AM, Mac Doktor wrote:Does this look broken?https://www.ebay.com/itm/267023108199The seller has more than ten. I hope the rest are OK. Shame about the pri

Re: [neonixie-l] Re: NL-8091's

I really like the look of 2 tube clocks, and these tubes would certainly make a very nice clock. If you’re looking to sell them, I would say that a fair price is probably around $300 a piece, maybe more, maybe less.On Aug 25, 2024, at 3:27 AM, Adam Piórko wrote:Two tubes are placed next to each o

Re: [neonixie-l] Re: XM1000 x 6

IEE did in fact sue them, and all existing XM1000s were ordered to be destroyed; the fact that a set of six survived alongside their original driver board is a miracle.On Aug 2, 2024, at 8:27 AM, Robert wrote:Didn’t IEE sue them?RobOn 2 Aug 2024, at 16:22, gregebert wrote:There was an auction a

Re: [neonixie-l] Re: IEE Nimo tube power supply

The phosphor should be P31. I’m wondering if external deflection coils could be used to slightly alter the position of the digit to counteract burn-in.On Jul 18, 2024, at 1:06 PM, 'Grahame Marsh' via neonixie-l wrote: Do we know what the green phosphor is P1, P31 or something e

Re: [neonixie-l] NIMO

m either, so maybe they were all pre-production? On Thu, May 9, 2024 at 9:41 AM liam bartosiewicz <liambart...@gmail.com> wrote:According to the datasheet, this tube should have the part/ordering number BA-0006-P27, though the tubes don’t actually get marked with that On May 9, 2024, at 8

Re: [neonixie-l] NIMO

the other used green NIMOs sold.Best,NickOn Sun, Apr 28, 2024 at 7:11 PM Nicholas Stock <nick...@gmail.com> wrote:I won't be trying that test.... :)Sent from my iPhoneOn Apr 28, 2024, at 19:06, liam bartosiewicz <liambart...@gmail.com> wrote:That’s super cool! I wonder if it’s bette

Re: [neonixie-l] NIMO

That’s super cool! I wonder if it’s better at resisting burn in than the normal green phosphor.On Apr 28, 2024, at 5:49 PM, Pramanicin wrote:Bit speechless didn't know I had this, thought it was a regular green oneOn Thursday, April 6, 2023 at 2:18:52 PM UTC-7 jörg wrote:I've programmed t

Re: [neonixie-l] Re: NEW CD46

When the cost of a six digit clock can be measured in Jeff Bezos minutes then there’s probably an issue with the pricingOn Apr 8, 2024, at 7:57 AM, Nicholas Stock wrote:Prohibitive is not the word I would use 🤣Aspirational? Crazy? Insane?I know there's some inflation going on but this is ridi

Re: [neonixie-l] whats the life of the Burroughs HB-106

Fairly certain that all HB-106’s are standard life. You could probably get somewhere around 10,000 hours with a “new” one. > On Apr 5, 2024, at 7:55 PM, David wrote: > > The truly long-life tubes had mercury added. If you see a hazy purple glow > when the tube is lit, it's long life. Solid or

Re: [neonixie-l] A very rare Chinese Nixie tube '电工牌' SZ-2

One of these was sold the other day on eBay for a bit over $100, someone got a pretty good deal if you ask me.On Apr 1, 2024, at 12:31 AM, xuhui zeng wrote:This SZ-2 is a top-view display nixie tube produced by the East China Electron Tube Factory in China, with a diameter of 50mm+ and very large

Re: [neonixie-l] Who simulates or protoypes their designs before doing a PCB ?

I’ll usually use Falstad to simulate analog sections of circuitry and to test component values, but nothing for the digital stuff On Mar 23, 2024, at 8:41 AM, gregebert wrote:Just curious to know how many of you run logic and/or analog simulations on your designs before doing a PCB, or if you do

Re: [neonixie-l] Beckman SP-353s on eBay -- WARNING !!

I had an intrusive thought one time, and decided it wouldn’t be a bad idea to flick the evacuation nipple on a VFD; it didn’t work out all that well, although it did make a pretty cool noise lol.On Mar 1, 2024, at 9:19 AM, Jeff Walton wrote:Here's some friendly advice:  don't ever use the end of

Re: [neonixie-l] NL-8091

Wow! Bargain is an understatement (unfortunately), that set could have very well gone for over twice that price.On Feb 25, 2024, at 10:52 AM, Nicholas Stock wrote:Somebody got a bargain if all 6 of those work wellOn Sun, Feb 25, 2024 at 10:37 AM Adam Piórko wrote:Hi,

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

If I remember correctly, there were some tubes manufactured that had a small external radioactive source to make them more reliable. It wouldn’t be very practical, or safe for that matter, but a radioactive nixie clock does sound pretty cool.On Nov 30, 2023, at 1:43 PM, Nicholas Stock wrote:May I

Re: [neonixie-l] Four unidentified tubes

Great finds! I’ve definitely not seen any quite like those before.On Oct 28, 2023, at 12:01 PM, Adam Piórko wrote: Hi,At the beginning, I apologize for any potential language errors. Recently, I purchased a Nixie tubes, including some without any labels that I've never seen onl

Re: [neonixie-l] An odd, but interesting observation of a weak B7971 tube

Another note about firing voltage is that in general, using higher voltages for nixies, ie. >200V increases lifespan, assuming the proper anode resistor is used.On Oct 8, 2023, at 11:13 AM, Nicholas Stock wrote:I've noticed a few 7971's needing a couple of hours to fully illuminate after which th

Re: [neonixie-l] Clone B-8971

Seems like an alphanumeric tube would be far easier to manufacture, probably even doable in a modest home shop without specialized tooling.On Sep 29, 2023, at 11:29 AM, Nicholas Stock wrote:Not familiar. Is someone making one?On Fri, Sep 29, 2023 at 10:54 AM Adam Piórko

Re: [neonixie-l] Re: B-5972

Perhaps it has different electrical characteristics? It looks pretty much identical to a 5971.On Sep 5, 2023, at 7:46 AM, Richard Scales wrote:Hmm, there must be some difference between that and the B-5971 - though what, I don't know.Is it the same in as much as it has the same segments (difficul

Re: [neonixie-l] Re: What type of tubing / valves are used in vacuum and de-gassing, gas population experiments?

I’ve read somewhere that people have had reasonable success in making Nixie tubes with just a dual stage rotary vane pump, so it may be worth giving that a shot before spending loads of money on a diffusion/turbomolecular pump, controller and pirrani/ionization gauges. Check out this website here: 

Re: [neonixie-l] Re: does anyone know anything about the IN-20 bar graph tube thanks

I wouldn’t be surprised if it was produced in what is now Ukraine, but I may be wrong.On Aug 2, 2023, at 11:11 AM, Tidak Ada wrote:Is the use of blue and yellow a statement,m in combination with a Russian tube? [e] Van: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] Namens Dekat

Re: [neonixie-l] B49989 nixie

Does anyone here own any of these SK-176 tubes (besides B/NL-4998)? I’d be curious to see them, as these tubes seem like they were made largely for military/aerospace applications.On Jul 25, 2023, at 9:39 AM, Mac Doktor wrote:On Jul 25, 2023, at 10:59 AM, Nicholas Stock wrot

Re: [neonixie-l] seen this rather intriguing tube

Wow! A third of that price? Mind sharing who your supplier is?On Jul 6, 2023, at 9:35 AM, Jasper nagle wrote:yeah was thinking about getting it but i got a dealer for my tubes with a 3rd the price for that tube On Friday, July 7, 2023 at 12:26:10 AM UTC+8 Audrey wrote:Someone got a great dealOn T

Re: [neonixie-l] NIMO

There is a tube called the TX-19A, which is similar to the MTX-90, but it has a green phosphor like that in a magic eye. Some went up on eBay recently, but it looks like they’re sold out now. > On Apr 4, 2023, at 7:42 AM, jörg wrote: > > Is there a green-glow flathead indicator tube available

Re: [neonixie-l] ScopeClock with teensy4.0

The schematic and software would be good enough for me, personally > On Mar 10, 2023, at 10:15 AM, Darrin Weiss wrote: > > I also have some interest in a kit > >> On Friday, March 10, 2023 at 10:00:11 AM UTC-5 Richard Arndt wrote: >> Yep... put me down too for a Scope Clock kit of parts :-)

Re: [neonixie-l] Re: EEV E727G - what's that?

I’ve actually attempted to make a very simplistic version of a binaview, the principle is not particularly complicated, just hard to execute with good readability. I may try to pick up the project again in the future. > On Feb 7, 2023, at 12:57 PM, gregebert wrote: > > I've pondered over it a

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

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 >>

Re: [neonixie-l] Bubble Lights and other Christmas Lights of interest

If the bubble lights are just tubes filled with DCM and a boiling chip type thing, then they should be really easy to make, or perhaps I’m just oversimplifying it. > On Nov 28, 2022, at 3:30 PM, Mac Doktor wrote: > > First off, this site has an excellent rundown on the history of holiday > l

Re: [neonixie-l] Estate sale catch!

That’s interesting that the HP had European tubes in it, I guess someone replaced them at some point > On Oct 15, 2022, at 10:26 AM, Paolo Cravero wrote: > >  > Good finds, Martin! > This morning at a small hamfest I had my share of luck too. An HP 3734A was > being sold "just for the (5) Nix

Re: [neonixie-l] Re: presentation of GR-43015 and enquiry on Siemens nixies

The green insulation on the pins inside the tube are pretty characteristic of Japanese nixie tubes, I haven’t seen a tube with it from anywhere else > On Oct 8, 2022, at 5:49 PM, Jon Jackson wrote: >  > > > > On Sat, Oct 8, 2022 at 6:48 PM Jon Jackson wrote: >> "⏦" U+23E6: Ac Current (Unic

Re: [neonixie-l] Jeff's Nixie watch parts layout or schematic?

It looks like it’s a 32.768 kHz crystal and a series of frequency dividers. (maybe +/- a couple minutes per year?) I imagine (at a basic level) it’s a classic TTL clock in SMD form. > On Aug 31, 2022, at 4:58 PM, Max Di Noi wrote: > > I'd be curious to see how the timing circuit works and ho

Re: [neonixie-l] Re: Nixie Clock - Direct Drive HV5530

I’ve had great experience with the TPIC6B595s, I used them to drive a whole bunch of miniature bayonet style bulbs for a clock using IEE one plane readouts, no problems with them so far. Probably a little over 120 mA per IC. > On Aug 17, 2022, at 8:12 PM, Christian Riise Wagner > wrote: > >

Re: [neonixie-l] Label Makers

I got one of the cheap Dymo embossing label makers, it works great, makes nice looking labels, and the refills cost next to nothing > On Jun 7, 2022, at 5:13 PM, Nicholas Stock wrote: > >  > I bought one of these a few years back.. > > https://smile.amazon.com/gp/product/B005X9VZ70/ref=ppx_yo

Re: [neonixie-l] 7971 Burroughs question

The socket type is SK-137, and if you can’t find any NOS ones, you can always make your own using tube socket pins, like this: eBay item #403434590507 > On May 16, 2022, at 2:02 PM, SD wrote: > >  > Hello > I was referred to this mail list, thank you > I am sitting on for years a 7971 that I w

Re: [neonixie-l] Neon signs

High voltage like that from a microwave oven transformer terrifies me, I’ve only just begun to make things that take power directly from mains and not a wall wart. It’s no wonder why people say MOTs kill more electronics hobbyists than anything else. > On May 12, 2022, at 10:17 AM, gregebert w

Re: [neonixie-l] What kind of display is this?

Am I correct in saying that you cannot directly view the characters off the monoscope? It would be cool to be able to display a bunch of characters on a small crt like a NIMO tube. > On May 12, 2022, at 9:46 AM, Mac Doktor wrote: > >  > >>> On May 12, 2022, at 11:31 AM, Nicholas Stock wrote

Re: [neonixie-l] identification request :unknown edge lite displays

I made a clock using some IEE one-plane readouts a while back, I’d suggest using a bunch of high-power shift registers like TPIC6B595s. Both displays use small incandescent bulbs, so I figure this would work for edge-lit displays as well. > On May 10, 2022, at 10:04 AM, Richard Nicewonger > w

Re: [neonixie-l] Your vote please...

Build an audio amplifier inside the case and use the screen as a spectrum analyzer, I don’t think I’ve seen that done before > On Apr 24, 2022, at 2:28 PM, Mac Doktor wrote: > >  >>> On Apr 24, 2022, at 11:54 AM, 'John Rehwinkel' via neonixie-l >>> wrote: >>> >>> To give myself something to

Re: [neonixie-l] eBay Paranoia

The only bad eBay experience I’ve had was when I ordered 80 NL-5853s for about a dollar a piece...needless to say, this was too good to be true and the seller kept sending messages about why they couldn’t send the package, and then went radio silent. I will say that the process of getting a refu

Re: [neonixie-l] New to arduino and nixie projects, looking for advice

Maybe take the numitron idea even further and use minitrons? You can find them pretty easily in old avionics equipment, and they’d probably last longer in that type of environment anyway. > On Apr 2, 2022, at 2:02 PM, Michail Wilson wrote: > >  > I agree with, well, almost everything. > > I

Re: [neonixie-l] Re: Tube Storage

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

Re: [neonixie-l] WTB or trade for CD47s and other large nixies

I’m not sure if it’s what you’re looking for, but there are some NL-7037’s listed on eBay from Germany: https://www.ebay.com/itm/NL7037-Jumbo-Nixie-Tube-National-Electronics-Tested-100-working-NL-7037-2-/165348429414?mkcid=16&mkevt=1&_trksid=p2349624.m46890.l49286&mkrid=707-127634-2357-0 > On Fe

Re: [neonixie-l] Info on IN-3B lamps

Those look like something someone made at home, or at least something that could be made at home with the right setup. > On Feb 16, 2022, at 5:22 PM, Mac Doktor wrote: > >  > You beat me to it, Martin, but it's a good thing I was interrupted before > sending my reply. If nothing else these li

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

I have to imagine they’d be much simpler to manufacture, I bet he could sell them for half of what a B7971 goes for these days. > On Jan 13, 2022, at 7:45 AM, Audrey wrote: > >  > Hopefully not before our savior dalibor makes a z7971 ;) > >> On Thu, Jan 13, 2022, 9:47 AM Robert G. Schaffrath

Re: [neonixie-l] IN-23 Cathode Resistors?

This is a complete guess, but the B-5971 has similarly sized cathodes, so maybe start with the values given for that tube. > On Dec 24, 2021, at 2:06 PM, Mac Doktor wrote: > > Has anyone figured out the values of the cathode resistors for the IN-23? I > lucked out and scored one on eBay for $

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

Who knows, they might be the ones laughing in 5 years when a single tube goes for $10,000 > On Nov 22, 2021, at 11:01 AM, Audrey wrote: > >  > Sounds like the guy who spent 3500 euros on an untested one was just stupid > >> On Mon, Nov 22, 2021, 1:56 PM gregebert wrote: >> Fugly or not, som

Re: [neonixie-l] Re: Looking for some info about RCA DTF numitrons

That looks really nice, what does it do? If you’re interested in minitrons, you can find them in used avionic equipment. > On Oct 28, 2021, at 1:26 PM, peter bunge wrote: >  > Would anyone care to sell me an end view Numitron (DTF104B) to add to my > vintage digital working display? > I would

Re: [neonixie-l] NEC LD-816 from Ebay

It might display some kanji characters, but it’s hard to tell from the photos > On Oct 22, 2021, at 10:09 AM, 'Bogdan Paduraru' via neonixie-l > wrote: > > Friends > > Does any one of you got the below tube? > > https://www.ebay.com/itm/203624118285 > > I am very curious on what it does dis

Re: [neonixie-l] Scope Clock SC200C

The acute-angle traces give it character > On Oct 20, 2021, at 5:04 PM, Terry S wrote: > >  > That may just be one of the worst PCB layouts I've ever seen. >> On Wednesday, October 20, 2021 at 8:33:41 AM UTC-5 martin martin wrote: >> Here's a simple one >> https://www.tindie.com/products/howcho

Re: [neonixie-l] Re: Homemade Purple Nixie Tube

I’ve got a GE AR-4, and I’m pretty sure it takes 120vac. I imagine it has some mixture of gasses, like mercury and argon, that allow it to strike at a lower voltage. Not sure about the feasibility of incorporating mercury into tubes made in the home shop though. > On Oct 19, 2021, at 3:56 PM, j

Re: [neonixie-l] Looking for a B-8091/NL-8091

Make that nearly $1,400... > On Oct 3, 2021, at 8:57 PM, LB wrote: > > Hi everyone, > > I've been looking for an 8091 to add to my collection for a few years. A lot > of four popped up on ebay a few days ago, and unfortunately, I can't justify > spending nearly $600 on tubes. If anyone has

Re: [neonixie-l] Little tube mystery

This looks more like an LD-955A to me, I’ll get a photo when I get the chance > On Oct 5, 2021, at 12:24 PM, David Chambers wrote: >  > Hi, some years ago I aquired 7 small Nixie tubes, the markings have gone, but > on one there can be seen a faint Hitachi logo. I have attached a pic of one >

Re: [neonixie-l] Re: Please help identifying a nixie tube.

Could be an IN-4, I’m pretty sure those can be used as biquinary tubes. > On Sep 18, 2021, at 2:35 PM, chuckrr wrote: > > almost -- 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, s

Re: [neonixie-l] Please help identifying a nixie tube.

Who made the IC on the pcb? Could give a clue as to where it’s from > On Sep 17, 2021, at 4:34 PM, Bartek Ogryz wrote: > > Hi! > I'm trying to identify an unknown nixie tube. You can see it on a photos (I'm > not able to do a better ones right now). The tube is red coated. It had a > label wi

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

Yup, it’s really quite unfortunate. I don’t understand why someone would buy a flat-topped NL-5440 for 5x the price of one with a tip. > On Sep 17, 2021, at 2:10 PM, Audrey wrote: > >  > I am a collector, it is obscene... > >> On Fri, Sep 17, 2021, 5:00 PM Yohan Park wrote: >> We're at the p