I have a nixie clock prototype that uses 4 in1 nixies, a in9 bargraph and a og3 dekatron. The clock works well however the dekatron takes up 4 pins of the pic micro (3 for guides and 1 for zero detect), and I need these for further expansion. Is there an adaptation of the single pulse circuit that can be driven from 5v logic from the micro so that I can step the dekatron from just one pulse output from the micro. I'm thinking a few resistors and high volatge caps for the required guide time delay.
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