I built a direct-drive clock with Moses' chip years ago with IN-8's. It
turns off for about 12 hours out of each day using only the blanking
feature on the 74141's. I don't notice any glow, the tubes seem to turn
very cleanly "off".
It might be because I used the soviet 74141's, though.. or maybe it only
works with specific tubes.
I agree with David, the cleanest solution would be to simply turn off
your HV supply.
-Adam
On 11/23/2011 8:22 AM, Jan Rychter wrote:
I'd like to be able to periodically switch off my nixies in order to extend
their lifespan. I have a non-multiplexed direct-drive circuit with 74141s
driving the nixies. I've been wondering - is it enough to keep the 74141s
switched off, or do I need to build in a circuit that will remove the anode
voltage?
Normally I would just leave the anodes powered and there should be no current
flowing, but nixies and high voltages are not something I understand very well.
--J.
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