Sourcing clones of the 74141 Nixie driver ICs ended up being easier than anticipated, and the rest of the electronics came together quickly. This effect looks great, and it also better protects the tubes from impact damage. This ended up being serendipitous, as the redesigned front panel allowed the Nixie tubes to be inset within the metal chassis. The original decision to upcycle the chassis from an unrepairable Heathkit function generator came a little undone after some misaligned cutting, so the front panel ended up being redesigned and 3D printed. It’s also hard to beat the warm glow of Nixie tubes in a desktop clock, as discovered when building a Nixie tube clock for a friend. Building a clock from parts is a right of passage for makers, and often represents a sensible introduction into the world of electronics.
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