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/a9482a29-4940-4577-bd3c-8c8f33b5bd97n%40googlegroups.com.
