Perhaps there is a thermal component hiding in the underlying physics of tube wearout, such as exp(aKT), where K is Boltzmann's constant, and T is absolute temperature. Tubes will run hotter at higher current. Until now it never even occurred to me the cathode surface temperature of a nixie could be significantly higher than the glass envelope.
I'm not sure how the heat generated by a nixie tube is produced, and more importantly, *where* it's produced. The cathode itself isn't actually glowing; it's the ionized gas surrounding the cathode that produces the glow. Most likely the ionized gas is the hottest part of the tube, but it's close proximity to the cathode will cause it to heat. -- 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/1104a751-168b-4b0a-b189-e763db570eb8%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
