Nixie tube watch - GIF

Nixie tube watch.

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More: https://en.wikipedia.org/wiki/Nixie_tube

Previously:

https://www.homemadetools.net/forum/...155#post126096
https://www.homemadetools.net/forum/...269#post130848
https://www.homemadetools.net/forum/...999#post103073
https://www.homemadetools.net/forum/...4170#post79461

Battery life on that must be measured in minutes. :)

I had one of the original LED watches way back when the choice of LED colors was RED. That ate batteries but worked very well until cleaned in an ultrasonic cleaner.

Don't clean electronics watches in ultrasonic cleaners.