My circuit is designed in a way that should the tubes not ionize, the voltage will rise to 200V. It could actually go higher than that but I got my backlight LEDs in series with a 200V zener diode, so when current starts to flow through the LEDs and zener diode, the voltage no longer rises. When this specific tube doesn't ionize, the backlight LEDs are on, so I know the anode voltage must be at least close to 200V.
Michel On Sep 2, 10:17 am, threeneurons <[email protected]> wrote: > What supply voltage are you using ? Nixies will ionize faster at when > subjected to higher voltage. With an externally (non-battery) powered nixie > clock, you can adjust the supply voltage up, and compensate by varying the > anode resistor appropriately. With your watch, monitor the current. Start > with a high voltage (200V or so), then once you see current flow, then drop > the voltage. > > A few years ago, I ran an experiment, simulating multiplexing. I noted the > "turn-ON" time versus the supply voltage. I have the real numbers > somewhere, but the "turn-ON" time could be cut dramatically, by raising the > voltage. If you just set it at 170V, you could be in trouble. > > There are published charts of ionization probability versus supply voltage. > That and my experiments, are telling the same thing. Up the voltage. -- 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 https://groups.google.com/groups/opt_out.
