Sorry for being a dumb ass, but what's a degauss therm? I just moved and was vacuuming the crud out of the old (ancient) RCA before hooking her up and noticed a gray waffer lying on the PC board. RCA schematic identifies it as RT 4201. #s on part=100-01A also A 1727. I posted here in the recent past about a problem I was having with this old set, got no answers and have just lived with it, push in on hard vertical lines at the edge of the screen/picture.

Please, tell me where to get this "degauss therm" and I'll give it a shot.

Thank you much,
Analogman

A therm (thermister) is a fancy resistor that quickly increases its resistance when power is applied. Hooked in series with the degauss coil it allows the coil to dagauss the picture tube then shuts down. A lot of early computer monitors had them in black plastic enclosures.

Rob

Thanks for the response. All I have is the schematic glued in the set and the part itself, the #s I gave above. Will this be enough to determine the correct value for the replacement? I will be looking for one at a Fry's, don't know if they are capable of crossing old RCA NOS #s. Any suggestions greatly appreciated.
Thanks again.
Analogman

You can usually just solder the wires back on those RCA thermistors. They fall off all the time because they never use enough solder to make a strong connection. Use a cool soldering iron, or it will crack (around 650 F).

You can usually just solder the wires back on those RCA thermistors. They fall off all the time because they never use enough solder to make a strong connection. Use a cool soldering iron, or it will crack (around 650 F).


Thank you a million times, I was wondering if that was a possibility, or OK to do. Thank you so much.
Analogman

The RCA part # you are looking for is.........207768.

The RCA part # you are looking for is.........207768.

Thanks Jack.
Analogman