Nixie Clock cathode poisoning prevention routine.

Discussion in 'The Projects Forum' started by Beesus, Nov 26, 2013.

  1. Beesus

    Thread Starter New Member

    Nov 21, 2013
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    Im building a Nixie Clock and would like to implement some kind of cathode poisoning prevention routine. Ive seen that some clocks will cycle the digits randomly every so often. Anything I find for this is usually a code for a pic or arduino. Im using Cmos logic to keep the time and drive the nixie's and I dont want to use pic or arduino at all. Could I do something similar with out using software.
     
  2. DickCappels

    Moderator

    Aug 21, 2008
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    Last edited: Nov 26, 2013
    #12 and Wendy like this.
  3. Beesus

    Thread Starter New Member

    Nov 21, 2013
    4
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    Thanks for the link. Could I use an OR gate at the cathodes of each nixie to achieve my desired effect. So i would have the normal clock in one input of the OR and the routine in the other. I made a CAD drawing to illustrate. Just imagine that there is another 9 OR gates to the other cathodes.
     
  4. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    Yes, you could do that - or you can use the OR gates on the left side of the base resistors; that will keep your parts count down. The lower your parts count, the less there is to break/fail.
     
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