One quick point: Nixie tubes are current driven. It is important to keep the current within the limits defined for the tube. The voltage just has to be large enough to initiate the glow. It is typically somewhat larger so that a suitable current-limiting resistor can be put in series with the anode and still have enough potential to initiate and maintain the glow. Using a higher voltage and s higher resistor value allows for a more stable current, given variations in output voltage.
A number (cathode) is lit by pulling it to ground so the current can flow. Other cathodes are either left floating or pushed up to a high enough voltage to stop the flow of current, e.g. 75V To control the brightness, you need to switch the current on and off quickly. This is typically done using some kind of PWM of whatever is controlling current flow. If you still want a power supply that allows you to control the voltage from software, I recommend the Taylor HVPS power supplies, or you can incorporate my design if you want to build it from scratch (it also allows voltage control from software) http://www.nixies.us/projects/nixie-tube-power-supply/ Good luck! -- 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 [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/78d3ea0d-7e3c-468a-8ab1-0dbc4d77c247%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
