> i took it down to 1k at 5wa...@115 vac and every thing got warm to hot > but the funk would not blast away and is still there after many > hours
Measure and report back the voltage drop across that 1K resistor, so we can get a current reading (I=Vr/1000). I have an NE31 that was in a little ckt I made a few years ago: http://cid-f9db37b8211ce831.office.live.com/self.aspx/Electronic%20Projects/neon_organ.gif The glow stopped alternating between electrodes (each alternately anode & cathode). I thought the ckt crapped out, but I found it was the NE-31 was cathode poisoned. After burning it in a few hours, it illuminated fully. I also found that it contained an internal series resistor, so it can be connected directly to 120VAC. The ckt was not delivering enough current, so the poisoning occurred. I'm now using a smaller NE-45. So, back to the NE-70. If the voltage drop is small, say 25V, or less, then there most likely is an internal limiting resistor. If it does appear to have an internal resistor, then get rid of the external one. -- 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.
