If I had to guess, one or more electrolytic caps has probably dried-up and is no longer working as a capacitor. Probably a good idea to replace all of them with fresh ones. Keep an eye out for corrosion on the PCB from leaky electrolytics, and be aware that some probably contain PCBs (not printed circuit boards, but highly toxic *P*oly-*C*hlorinated *B*i-phenyls).
I always got a laugh about cost-cutting by using a neon bulb instead of a nixie tube for the leading '1' digit. I bought 2 Fluke 8000 DMMs several years ago (they are LED, not nixie) because they were very reliable when I was a technician. But they have accuracy issues, and some of the pushbuttons dont work very well. I'll probably give them away as-is to anyone willing to pay shipping costs. Some things dont improve with age.... -- 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 neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/6ec70545-bcc4-479a-8061-16b9870932e2%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
