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/f022b89e-8a11-47e1-877c-fdbdf5d9f9fan%40googlegroups.com.
