November 7, 2012 AT 6:21 pm

BCD Nixie Module Project

BCD Nixie Module Project. Fran writes –

Old School Side Project: I wanted to create a universal BCD controlled nixie display driver that could be made into a simple module for any application.  Here for demonstration I have breadboarded an automatic counting circuit with a 555 wild clock triggering a BCD output up/down counter to act as a driver for the separate high voltage transistor control/switching board and nixie display, with complete low voltage regulated and high voltage supplies.  All vintage parts too.  Enjoy!


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1 Comment

  1. hah, i just breadboarded out a similar thing, i used a 555, 74192 and 74141

    i’m not sure if you can get 74141s (or equivalent) too easily but there are some on ebay
    it may be cheaper than all the transistors and take up less space if you wanted it on a small board

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