I've received my nixie power supply from tayloredge, and I set up a small circuit to test what value anode current limiting resistor I need. I set the voltage to 180v, and found that the optimal current for my IN-14 tubes (which is 2.5mA) is achieved at 14k ohms. I soldered up my full circuit, which includes 15 IN-14 tubes, with a 14k resistor at each anode, 15 in all. When I plugged in the same power supply, my ammeter saw a 40mA draw, which equates to 2.66 mA per tube.
Would a +0.16mA increase over optimal current harm the tubes? I'm a little paranoid due to the scope and expense of this project, and I would like the tubes to last as long as possible. Each tube is driven directly, no multiplexing, with a standard Russian 74141 clone chip per tube. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to neonixie-l@googlegroups.com. To unsubscribe from this group, send email to neonixie-l+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
