I'd rule-out voltage as the problem; consider neon devices to be current-controlled (more current --> brighter, etc). When you drive a neon device from a voltage-source, there usually a current-limiting resistor (or a transistor) that determines how the neon device operates.
If you are only pumping 11mA intermittently, and most of the time it's low/zero current, it doesn't seem reasonable that excess current is causing your tube to fail. The data you provided doesn't reveal anything suspicious to me. I'm wondering if you have a bad batch of tubes ? I think I will setup my bench supply with an IN-9 (that's all I have) and see what happens after several days at 6mA. Stay tuned. -- 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/96e66c9b-fc18-4296-9150-2c7675bd9f06%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
