For those of you with thick wallets...

[GastonP]

Hey all, just a heads-up

A guy which usually sells in the DIYAudio forum has jumped up with a stash of ITS1A. From his usual published prices (in this case he didn't so it smells to expensiveness) he is not the cheapest in the block...

http://www.diyaudio.com/forums/vendors-bazaar/161760-selling-tubes-26.html#post4216633

Usual disclaimers apply... I don't know him, I have never bought from him, I don't get a share... blah blah...

Gaston

[Mike Mitchell]

Perfect for use in this kit:

http://nixiekits.eu/ITS1-A.htm

Unfortunately my wallet is too thin for these.  I just bought several B7971s,,,,

Mike M.

[GastonP]

They (the tubes and the kits) are beautiful, aren't they?

I am currently unemployed so thickness of the wallet is a kind of moot point. But hey! you at least got B7971's to make a nice clock, FLW, or if you got several, something like this: http://www.x1024.net/nixie/marquee/

I still have an old Burroughs B5971 tube plus its driving electronics, of which I threw the metallic housing away a long time before falling in love with nixies.

Gaston

[Nick]

I wonder what the life of these tubes is? They are a completely different technology - anyone any idea? (documented, preferably!).

Nick

[gregebert]

I found some information on the web by googling 'ITS1a thyratron'; they appear to be a neon-phosphor hybrid. 

There is a datasheet for one of the Ebay auctions; I cant read Russian but the largest numbers are 5,000 and 10,000 so I think that would be an upper-bound on the lifetime.

The dominant emission is from the phosphor. Could be similar to the NE-2G bulbs which have an interior white phosphor mixture yet they glow green. I have a few of those bulbs but have not had a chance to life-test them.

Although they look neat, I personally think they look too much like a 7-segment green LED or VFD to justify the price, which is slightly higher than IN-18's. Also, they dont appear to be as bright as nixies, which maybe one reason why these tubes didn't get widespread usage.

[Dmitry Dianov]

Intresting tubes. As far as I remember, they were made to be driven directly from CMOS (or even TTL) levels.

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[David Speck MD]

Greg,

I have had two NE-2 Green lamps running 24/7/365 on my whole house GE
Tranquell surge protector since the autumn of 1995 with no noticeable
loss of brightness. That's pretty good performance by any standard. YMMV.

Dave

[Terry Kennedy]

On Tuesday, February 10, 2015 at 12:37:34 PM UTC-5, Nick wrote:

I wonder what the life of these tubes is? They are a completely different technology - anyone any idea? (documented, preferably!).

10,000 hours according to one datasheet I saw. Here's a post I made here last year about these:

https://groups.google.com/forum/#!msg/neonixie-l/YbVE-OynVuY/NzXVlMzrswIJ