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November 11, 2010 AT 6:02 pm

Making classic frequency counters into Nixie clocks

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Making classic frequency counters into Nixie clocks @ Evil Mad Scientist Laboratories. EMSL writes –

One of our favorite longstanding projects– which we dropped a hint about some time ago –is converting old HP Nixie-tube counters into happily glowing Nixie clocks. Here’s how we do it.


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