The 5031 has a collar around the cathode stack, and it reduces the viewing angle. I cant think of any reason why it would affect the operating life.
Given this is an earlier-generation nixie vs the 5092, I'm sure there were several improvements that Burroughs made for improving reliability and manufacturability. The glass-seal around the pins is ultra-critical, which might be a factor in shorter 5031 lifetime due to gas leaks. After 50 years, even a leak that is undetectable will have caused some damage. -- 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/cb4c92f7-f813-47b3-8b81-f94908a42c81%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
