B5092 to ZM1022? Other options?

[MikeDL]

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!

[J Forbes]

guess I should have bought more of these back in 2009....sorry....

[gregebert]

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.

[Leroy Jones]

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 have

relatively short lives.   But I have had fairly decent service out of mine.  A while back I got some more spares from members here, including

some 5092s.    But please do check out 6844 tubes as an option.

[Leroy Jones]

Hello, J. Forbes:

Are any of those for sale?

[J Forbes]

I only bought six of them, I have no idea what happened to the others. That was at a store, 15 years ago

[andybiker]

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/405036354231

https://www.ebay.co.uk/itm/166831422264

Often as GN4 or GN4A

beware 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/394846677458

Regards,

Andrew

[andybiker]

P.S. no affiliation with any of these !

Just used a search engine...

[Robert]

PV Electronics still has GN-4

Thanks

Rob

On 21 Jun 2024, at 09:34, andybiker <andy...@gmail.com> wrote:



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[Nick Andrews]

Ah, for a time machine!  Go back before 1986 and patent some mining claims in national forests, register a bunch of machine guns before May 1986, buy  some stocks, buy a TON of nixies...  Go back to end of WWII and buy a bunch of B-17s, etc...

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[Leroy Jones]

Ok well you guys may find my tastes in nixie tubes somewhat odd, but I find that even though 6844A has a relatively short life, in my opinion 6844 makes up

for that by just looking so cool.    Here is another pic of my other finished clock, made in 1995.   It uses National tubes.   NL-807 for the hours and minutes, and NL-803

for the seconds.  There is also an unfinished but operational prototype clock that uses 8422 tubes.   Then there is the recently concocted clock which uses B-5853 tubes

but its main purpose was to make a clock based upon the highly esoteric and rare decade-counter/nixie driver IC 74142.