Could the photocoupler at HC2 be the culprit at all? When you change the tubes, is the brightness of the IN14 at that position the same as the rest?
On Tue, Aug 16, 2016 at 8:10 PM, gregebert <[email protected]> wrote: > Since it's multiplexed, it might be worth comparing the 'on' time of each > tube (I'm guessing it's H2 on the schematic ?). You'll need a scope. Maybe > there is a quirk in the controller firmware that leaves this particular > tube on longer ?? There's also a slight difference in the circuit around > tubes H2, H3, and H4 though nothing pops out as a possible culprit. > > Any chance there's a source of heat next to tube H2 ? > > Only other thing I can think of is if the particular socket puts more > stress on this tube. > > -- > 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 email to [email protected]. > To view this discussion on the web, visit https://groups.google.com/d/ > msgid/neonixie-l/14912c65-1aa1-46a3-b2dd-f2320a6d966c%40googlegroups.com > <https://groups.google.com/d/msgid/neonixie-l/14912c65-1aa1-46a3-b2dd-f2320a6d966c%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > For more options, visit https://groups.google.com/d/optout. > -- 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/CAOX%2BRHJ4H9qTzQ0OrEh2LYmrN%2Bn7nVhCjfc9coGRKwFy9yyQwA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
