IN-18's are a good choice; best size vs cost. None of mine has failed. I have a large clock with fourteen IN-18 tubes (MM.DD.YYYY HH:MM:SS format) , and I run them around 200V with a current-limiter. My supply is a bit wimpy, so I dont get the full 4mA. As a result, 2 tubes that are static get slight poisoning even though I run 1 hour of depoisoning each night. None of the other tubes show signs of poisoning even if they are static during the day. So I conclude that some tube lots might be more vulnerable to poisoning than others. Most of mine were manufactured in 1989 or 1991; bless their hearts for keeping those nixie factories open for so many years !!
I didn't collect much I-V data on these tubes; buried in my lab notebook from several years ago. -- 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 on the web, visit https://groups.google.com/d/msgid/neonixie-l/46eeb759-f475-43e0-8a2c-957b7d2a689f%40googlegroups.com.
