That's pretty cool that it somewhat lights up. However I think that you're mistaken in your assumption that the neon has escaped, leaving only argon in there. The gas mixture in a Nixie tube is at a very low pressure, so my guess is that atmospheric air has leaked into the tube, thus increasing the pressure inside. This would also explain why the voltage needs to be that high. And ionized atmospheric air does indeed light up purple. onsdag den 9. december 2020 kl. 21.38.54 UTC+1 skrev Paolo Cravero:
> Hello. > As I said in the IV-6 thread, I bought some apparently dead IN-16 that > react to a Neon tester (HVAC) with a violet/lavender glow. > > Since there is gas, it will light up one way or another! > > This is the promising result with 632 Vdc at about 9 mA: > https://youtu.be/NfKj6_Kf8DE (color does not match reality). > > To me it looks like a normal Nixie at undervoltage conditions. I can > probably add some other 100V using battery powered DC-DC boosters. > > Paolo > > -- 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 view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/ab0b0886-f950-4eea-bd37-f7839e3e31ben%40googlegroups.com.
