Yep, Paolo hit the nail on the head. A small leak...I've seen it a number of times on IN-16's, the IN-14's tend to be a lot more robust. Time to solder a new tube in I'm afraid...
Cheers, Nick On Tue, Jan 10, 2023 at 6:29 AM Paolo Cravero <paolo.crav...@gmail.com> wrote: > Hello overdoingism > Being the color purple, the tube is leaking and there is no way back. > > Since Nixies contain a gas mixture at a lower pressure than air, the leak > on your tube means that air has started leaking in. As long as the gas > pressure inside is low enough, the tube with light up [that beautiful > purple] if enough voltage and current are provided. Don't try it unless you > are aware of the risks of the experiment without someone making a list for > you, and certainly not with the tube soldered to the clock board! > > Paolo > > > On Tue, Jan 10, 2023 at 12:10 PM overdoingism Lab. <overdoing...@gmail.com> > wrote: > >> Hello, >> >> I have a failure nixie tube on my clock, >> But its failure seems a bit peculiar... >> >> It's CCCP IN-14, no over current or voltage. >> [image: nt01.jpg] >> You can see, even the anode grid have some discoloration. >> It's not normal in cathode poisoning, right? >> >> And it's working video: >> https://youtu.be/vGzF316FRBw >> Color is leaning toward purple. >> >> Who can tell me, what happened to it , and is there any way to save it? >> Thanks. >> >> -- >> 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 view this discussion on the web, visit >> https://groups.google.com/d/msgid/neonixie-l/cffd2f8d-cd4a-42d4-9ebc-e2c6f79a8c44n%40googlegroups.com >> <https://groups.google.com/d/msgid/neonixie-l/cffd2f8d-cd4a-42d4-9ebc-e2c6f79a8c44n%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- > 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 view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/CABj2VaYbThJQEiQFEOwbaHEGXLHyhK7VsZQOSyoE2DB1GAA8aQ%40mail.gmail.com > <https://groups.google.com/d/msgid/neonixie-l/CABj2VaYbThJQEiQFEOwbaHEGXLHyhK7VsZQOSyoE2DB1GAA8aQ%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- 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 view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/CAOX%2BRHL3P2TY4%3D-nQ%3DXFf%2BS9wpde6spG21AxOAj48WL5uQ0eEw%40mail.gmail.com.
