Hi
I built a clock using XC18 trigger tubes
http://www.sgitheach.org.uk/nixie3.html
As a clock it worked well as long as it was kept in the light. Left in
total darkness overnight it would be 50:50 what you would find in the
morning. I ran it under a small UV lamp and it survived every night
(leds are not allowed). Now its just a demonstration clock. I had
started with two electrode neon bulb rings but found them more unreliable.
I recently bought a bunch of Z700U trigger tubes which have a keep alive
electrode for total darkness operation. I've laid out (in Eagle) a
mains to 1 Hz divider card but not had time to brew and test yet. I
bought the trigger tubes from
[email protected]
But I don't know what his stock levels are like.
BTW if anyone in the group has a few Z700W (dual trigger) trigger tubes
I'd be very interested in a few
Grahame
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