My 18 tubes have now logged about 400k hours without any tube failures. I did see a slight color shift. The only failures in the clocks were in the other electronics (power transformer, IC clock chip, discrete driver transistor). Details posted in April 2020 in "Discovered an old advertisment ".
On Friday, January 3, 2025 at 7:25:19 PM UTC-8 Terry Kennedy wrote: I'd be concerned about the tube lifetime. B-7971's are among the most robust Nixie tubes I've ever seen, with some hitting 60,000+ hours, just in the clocks I built. And they were used pulls from stock ticker systems (there are no real "New Old Stock" 7971's, no matter what anybody says. Even Dalibor had a run of bad tubes (all replaced under warranty at no cost) after he had perfected his process. -- 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 view this discussion, visit https://groups.google.com/d/msgid/neonixie-l/0305deda-1b34-4ffd-a85d-9ec1a5813f26n%40googlegroups.com.
