Using a couple of Keithley Source Measure Units in series as a high voltage supply. (I have a nice bench at work!) These let me go up to 420 volts at 100 mA with the pair in series.
I took normal polarity up to about 330 volts measured across the tube at 15 mA this afternoon... no series resistor as I'm programming the SMU to set the current limit. Zero glow on the element, intense and quite isolated glow down near the tube base. I don't want to run at these levels for more than a few seconds at a time. I'll try reverse polarity tomorrow... Many thanks to all of you for the ideas! Bob -- 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/0b406152-bdd2-4b3a-a7ee-ea6b8951de6e%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
