One of the reasons I chose against multiplexing is simply that I have the resources to drive them directly: the 74141 chips came with the tubes, and my school gave my many 595s to play with. This way my microcontroller can drive the milliseconds display directly, and offload the seconds, minutes and hours to the 595 chips to drive the 74141s, and I don't have to worry about cycle timing and assembly instructions, not to mention having an (arguably) brighter display with longer life and better current regulation.
So based on the info here, I buy (http://cgi.ebay.com/Nixie-power- supply-1363-/140426808956) and get a resistor substitution box (I love this thing) and stick my ammeter in between, then get resistors which correspond to the highest value I can get without going above 2.5mA, correct? I plan on powering the SMPS with a 12V wall-wart, so the input shouldn't be a problem. Also, one last concern, my question about having the power supply off board, how long can the wires be from the board to the SMPS? -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
