Bryan's Philco TV-123

[Phil Nelson]

Originally Posted by bgadow

1) The doorknobs. I had an early b/w set with a bad doorknob once

Yeah, not a high-failure item, but I ran across a bad doorknob cap while restoring my Dumont RA-102:

https://antiqueradio.org/DuMontRA-10...n.htm#doorknob

At first, the doorknob created subtle horizontal blips -- maybe leaking a little -- and then it failed dramatically.

Phil Nelson
Phil's Old Radios
https://antiqueradio.org/index.html

[miniman82]

Hot coil implies dissipation- power should not be dissipated in the linearity coil. Switch from reading HOT cathode current to reading total input power to the horizontal circuit- put your ammeter where the fuse normally is and see what you get. Power is going somewhere it’s not supposed to go, either you lost drive or something is shorted somewhere. Either way you have to track it down before you burn something out, I don’t think you’ll find a LIN coil for this thing if it goes bad...