Thanks, Indeed, a current source seems to be a good idea. Did you put a transistor in the anode line? I'm wondering what the anode current does with a normal current limiting resistor when lighting e.g. the '1' and the '4'. The '1' character has only about the half of surface area of the '4'. So current density is the double of the '4' (or '8' etc.). Maybe introduce a SW controlled current limiter. :)
On Wednesday, April 6, 2016 at 6:00:36 PM UTC+2, gregebert wrote: > I run my IN-18's at 5mA, with pure DC. Each tube has it's own > current-regulator so it's a constant 5mA regardless of tube-aging, > power-supply variations, etc. Since my clock has only been in operation a > few months, I have no reliability information. But it has 14 tubes, so it > wont take as long to get that info as a 6-tube clock. > > Going over 6mA would likely cause lifetime reduction. Using less then 4mA > could risk poisoning according to some posts on this group. I've seen min & > max current values on other datasheets, notably Burroughs, so I use the > typical value (if specified), otherwise the average of min & max. > -- 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 post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/b8036f1c-da5c-4d57-9cb8-26e7bc4ecee1%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
