I have seen similar 'bright dots' on ZM1032 tubes.... Nick
Sent from my iPhone > On Jun 30, 2017, at 16:11, Roddy Scott <roddyscot...@gmail.com> wrote: > > I don't have a power supply but the spot occurs on the mesh and with a > different digit there is a a different spot. The tubes were NOS and I have > had them lying about for over a year in a box. I have a couple of QTC boards > so I am going to try them on those boards to see if they are the same. > > I have never seen anything appear on the Anode mesh with any tubes that I > have used so far so this is totally new to me. > > >> On Friday, June 30, 2017 at 9:50:36 PM UTC+1, gregebert wrote: >> How do things look when you bench-test the tube on a DC supply ? >> >> Is the spot actually on the anode mesh itself ? Ionization occurs at the >> cathode, so this is indeed strange. >> > > -- > 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 neonixie-l+unsubscr...@googlegroups.com. > To post to this group, send email to neonixie-l@googlegroups.com. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/c56190d9-c267-4d40-bbc0-3db51e00daa1%40googlegroups.com. > For more options, visit https://groups.google.com/d/optout. -- 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 neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/ABE7AA00-30B3-4EE2-8C8C-3FBD678C65D8%40gmail.com. For more options, visit https://groups.google.com/d/optout.
