If it was cathode poisoning, wouldn't some digits illuminate properly ? The video shows all digits with issues, except a few '7'. I seem to recall earlier postings about reliability issues with IN-18's manufactured in 1982.
In my junkbox, I have a few 5031 nixies that don't illuminate properly, and despite running them with higher current in an attempt to 'clean' them, they showed no improvement. I assumed mine were slowly leaking, because they are earlier-generation Burroughs tubes that preceded the legendary 5092's, which are very reliable. -- 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/03a16f14-b6aa-49ff-be5a-998c1820fe89%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
