I still think the tube has leaked. 600V is a lot of voltage, and it's going to get pretty warm at 9mA.
>From Paschen's curve, the ionization voltage is at a minimum at a certain pressure, around a few mBar. At pressures above AND below that point, the ionization voltage increases. As a tube leaks, it's pressure increases as atmospheric gases leak in and that will increase the ionization voltage and change the spectra. On Wednesday, December 9, 2020 at 12:38:54 PM UTC-8 Paolo Cravero wrote: > 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 neonixie-l+unsubscr...@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/b97a2bf8-66ad-4568-b556-2a0ea5fcd092n%40googlegroups.com.
