I've designed and built my own clock, even.
(neon is kind of over-exposed here; looks less washed out in person) https://awoo.space/media/kEK71CJGHT6jyY1p8HA
@emanate yep! American tubes even, which means the 5 isn't just an upside-down 2 like it is on the russian ones. I scavenged these from some vintage test equipment :)
@starkatt Scavenged is even better. :-}
@starkatt Oh, that's beautiful! Nixie tubes? Excellent stuff. :-}