Fixed is a bit strong... let's say that you can try to de-unpoison, an other word for "poisonning" a tube.
Le dimanche 8 octobre 2023 à 19:45:25 UTC+2, Paul Andrews a écrit : > And for some tubes, that’s all that lights up lol. I wasn’t aware this > could be fixed. Thanks Benoit and Dalibor. I might try this. > > On Saturday, October 7, 2023 at 11:53:18 AM UTC-4 Greg P wrote: > >> Benoit and Dalibor, >> >> Thank you for your responses. I will try your suggestions. >> >> On Saturday, October 7, 2023 at 5:41:12 AM UTC-4 Dalibor wrote: >> >>> Exactly as Benoit said - just decrease the current through the digit so >>> the glow disappears. Keep it running for days in that configuration, and >>> make sure the glow on the lead doesn't come back. The sputtered metal from >>> the digit traps impurities from the gas and make a thin layer on the lead, >>> protecting it from glowing at rated current. >>> It really takes time :-) >>> >>> On Friday, 6 October 2023 at 16:59:49 UTC+2 Benoit Tourret wrote: >>> >>>> you can try to add a resistor on this cathode, this will reduce the >>>> current, reduce the glow; if the unwanted glowing point disappears, the >>>> internal oxydation will re-coat the lead. this will take time, but this is >>>> the only way to isolate the lead without opening the tube... >>>> >>>> Le vendredi 6 octobre 2023 à 15:05:17 UTC+2, Greg P a écrit : >>>> >>>>> I have a clock that has some glowing lead wires from the glass seal to >>>>> where it connects to the individual cathodes. This doesn’t happen on >>>>> every >>>>> cathode in the tube. >>>>> >>>>> I know this can happen if too much current is applied but these tubes >>>>> are running at the rated current or below when using PWM for dimming. >>>>> >>>>> So my question is; does anyone have an tricks to resolve this without >>>>> just changing out the tube? Trying to avoid changing as these tubes >>>>> (Z570M) are hardwired to the PCB. >>>>> >>>>> Appreciate any help on this topic. >>>>> >>>>> >>>>> -- 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 on the web, visit https://groups.google.com/d/msgid/neonixie-l/482fb33f-4fd1-4cc1-bb7b-b5c19e70708dn%40googlegroups.com.
