Interesting thread. And another point about neon bulbs.... If you are using
them, remember that the ionization point is light sensitive.
I spent 3 weeks troubleshooting a strobe light that used a NE2 relaxation
oscillator trigger; it intermittently would not work, and no logical
troubleshooting got me anywhere. Finally the penny dropped and I noticed
that it was not working when the package was closed, but worked fine in
ambient light. I recalled from about 40 years ago that these bulbs were