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
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 Saturda
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
>
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,
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 octob
