I wouldn't expect physical trauma to be the issue, more something like a metal flash due to an arc, or tin whiskers... Something like that.
If the feedthroughs were capacitors, I would suspect a metal migration similar to what is being seen on many older silver mica capacitors. I am pretty sure that everything inside of the can is isolated from the can. You could try measuring the resistance between the affected resistor's terminal, and the can, looking for a high impedance bridging resistance. -Chuck Harris David C. Partridge wrote: >> I am thinking that the resistor leads have to leave the oil tank some way. >> Is >> it possible that the insulator on whatever sort of feedthru has been >> compromised? > > They are glass (or very similar) feedthroughs, so if that were compromised, I > think I'd see oil ... There is no visual sign whatsoever of trauma. > > If I find anything in that area, be sure I'll shout. > > Dave > > _______________________________________________ volt-nuts mailing list -- > [email protected] To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the > instructions there. > _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
