> I just received my two tubes today ... > current from 20 mA up to 40 mA. At all current levels ... > stayed at about 70 VAC.
Well there goes the idea of it having an internal series resistor. If it had, the voltage would have shifted. I think Charles is right, and this tube is intended as a voltage regulator, a opposed to making a pretty glow. If that's the case, then its working as intended. Voltage regulator tubes, of this size range, usually have a max current rating ~40mA. See 0A3: http://frank.pocnet.net/sheets/127/0/0A3.pdf But those usually have more cathode surface, so I suspect the real max current rating is something less. Maybe as little as 10mA, for long durations. If its a solid 70V over the current range, then that's pretty good. A 0A3, usually varies ~5V over its operating current range. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to neonixi...@googlegroups.com. To unsubscribe from this group, send email to neonixie-l+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
