Zitt, that sounds like a fun project. I have only looked at your schematic for a few minutes, so I may not completely know what is going on.
The first this I see that I do not understand is here I see the opto isolator. As I understand it, you are planning on running the leds through it. The construction of your circuit is a bit confusing to me. It looks like you are running the base rail of the transistors for your led's off of a line going through the first led(Q7A)? I'm not sure why you are doing that. Are you trying to use the led as a current regulator or something? It's a good idea to put a limiting resistor on the anodes of your Nixie tubes to avoid burning them out if you accidentally turn multiple legs on. I do not know what your incoming data is like, so I cannot speak very much to the rest of your circuit. It looks like you get the display data in on a 4 bit BCD shift register? What is the section of the circuit with the 4555d and 4503d components doing? I hope you'll post images of your finished product when you are done. :) Michael- -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
