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 an 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. For more options, visit https://groups.google.com/d/optout.
