Hi all! I've just got my IN-14 tubes and started experimenting on my first nixie project - the clock, of course! For now I am using a disposable camera as my power supply. Shorted out with an amp meter, it gives a steady 12.8mA at 330V, which is better than expected. But when I connect all my tubes (in paralel, each with a resistor), I have some problems. Some digits aren't completely lighted. I measured that each receives 0.3mA with a voltage drop of 110. I tried multiplexing them with an arduino (used a schematic of 2 NPN transistors to control current flow through each tube), giving me lower 0.2mA at 100V, but this time they were all lighted completely, but quite dimmed. Each nixie is lighted for 1ms, no delays between lighting nixies. I tried using variable resistors, but it didn't help.
So my question is; should I continue bothering with this power supply (should it even be used for 6 tubes) and try to fix my schematics, or just make my own power supply which I am not so fond of. Could the problem be in my way of controlling the multiplexing? Can driving nixies at such low voltage and current damage my nixies? Thanks a lot! -- 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.
