The schematic on taht link is CRAP! You will blow some components if You try!
It is imperative to have a resistor between the collector of NPN and base of the PNP. Otherwise it will end up in a short circuit when the NPN conducts. Google around for high end nixie drivers and You will find correct schematics. Use one high end driver for all the tubes if You don't intend to multiplex them. Each driver puts load on the HV and is bad. Releases heat and puts extra strain on the HV-supply. The total current for 6 tubes and two small neon bulbs will be well below the limit for the transistor. Select a resistor at least two times what saturates the transistor according to worst case on it's data cheet. If left unsaturated it will become quite hot and break. Use a fairly low PWM frequency. Without mux 100Hz is more than enough. Too high just makes the driver hot. -- 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. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/82de1543-448c-4176-a3bc-f5e0413094e8%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
