This is the so-called getter. It's made from a highly reactive element which binds residual gases and other impurities. It often looks a bit wonky in IN-14 tubes. I don't think you have to worry about it falling off on itself.
[email protected] schrieb am Samstag, 5. April 2025 um 21:31:38 UTC+2: > Hi- > > I have a few IN-14 nixies where the little disc that is normally attached > to the horizontal “bar” at the top of the numbers assembly has come loose. > The tubes work fine and the disc seems to be confined to the upper section > of the tube due to the mica insulator so I don’t think it can fall below > and possibly short the cathodes. But does anyone know the purpose of that > disc? See the photos below. > > -- 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, visit https://groups.google.com/d/msgid/neonixie-l/571c2e8a-edb3-42da-b439-d8c30740b8f9n%40googlegroups.com.
