On Jan 30, 6:35 pm, jb-electronics <[email protected]> wrote: > Cosmic rays :-) >
Actually, background radiation is enough, and that comes from a variety of materials that surround us. But the usual source is just light photons. Lots of it. What happens is that it's all statistical... the less the light, the less probable a photon will help start the ionization. And the more dependent we are on high energy natural particles. There's a project of ring-counter based nixie clock whose author helped the neon lamps he used as active devices to reliably trigger through the use of a couple blue leds. One could perhaps select nixies based on low light condition starting... OTOH, cosmic rays are not bothered much for a couple flimsy concrete blocks :) -- 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.
