It's a well known problem with the 1916's.
I have about 500 NIB, and most of them show that problem.
Most need a high firing voltage (200 V and up) and some are completely dead.
The only thing I can imagine is gas leakage.
I have experienced that problem on some other American made tubes, but oddly
ONLY at American made tubes (I recall National and Raytheon).
Dieter
On Monday, 9 April 2012 08:17:46 UTC+1, Matthew wrote:
Glad to find this group again... a few years since I did any of this stuff,
before the move to Google Groups!
I'm working on a couple of clocks, based on Jonas's kit at TubeHobby.com. I
really like the kit, having made two before - it's documented for IN-14 and
IN-18 tubes, but mine were with IN-12 and IN-16, both working well without any
modifications (other than physical).
This time I'm trying to make one with come CK1916 tubes I found on eBay -
they are very attractive. However, when wired up, they just don't seem to fire
at all :( I found the following datasheet on Dieter's site:
http://www.tube-tester.com/sites/nixie/dat_arch/Raytheon-data.pdf and they seem
to have similar specs to the Russian tubes, but I'm having no luck so far.
Does anyone have any experience with these tubes, or any ideas? If I sound
clueless, it's because I am :) I'm more into making the cases than
understanding the electronics!
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