Nixie clock pictures

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An externally hosted image should be here but it was not working when we last tested it.


An externally hosted image should be here but it was not working when we last tested it.


Time from mains frequency. No mains isolation transformer, no voltage doubler -- they ignite just fine with the rectified 115 VAC. Small transformer for the logic. Reset on power on; three buttons to set time. The six Russian IN-1 Nixies cost me a total of $10 US from seller kwtubes on eBay (he usually has all sorts of NOS Soviet stuff to sell). I had no sockets so used some sort of individual large Molex-type jacks.
 
This clock is from scratch including the transformer. Uses GE 3N83s and a few transistors, no ICs. Nixies are IN-12A.
 

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