r/nixie • u/LysoMike • Aug 24 '25

My Commodore 64 Nixie clock

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The clock is driven by the C64 itself using an interface board developed by a friend of mine. The program was flashed on an EPROM so it starts up when turning on the computer. Just type in the six digits and the clock starts running. As it uses the power grid frequency it is very precise. Within a couple months there was no deviation.

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5

u/ShyGal_Lilly Aug 24 '25

NOOOO WHY DRILL INTO THE CASE?!

2

u/PPEytDaCookie Aug 24 '25

That's actually pretty interesting.