Hi If they are carbon film, I'd look for cracked end terminations. Hopefully the color codes are still readable. That should make the replacement process fairly easy.
Another possibility - the thermistor bridge probably is / was regulated. If it's a zener diode, it may have opened up. That would boost the input voltage and increase the effective gain. Bob On May 12, 2013, at 11:36 AM, Frederick Bray <[email protected]> wrote: > Well, I decided to make the "Y" incision and pulled the circuit board out of > the oven. (Photos later after I crop them.) > > Yes, the trimpot is part of the circuit associated with the thermistor. > > My plan is to check the resistors (surprisingly most are carbon film except > those in the thermistor circuit), look at the circuit board under a > magnifier, and stick it back in the foam for testing after making any repairs. > > Thanks again for the continuing comments and advice. > > Fred > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
