That philco roundie I picked up a couple weeks ago started giving me problems last week. Its flashing in and out from a blank raster to normal picture. I pinned down the troublemaker, the 2nd IF transistor was intermittently open.
One of my other problems is, I have no adjustment of the AGC and the noise inverter. Figured I had some other electronic problems. Turns out, that cheap combo inline pot is no good. Its a 3 in one pot on a ceramic plate, all the carbon tracking is worn off from the and the controls are now open.

If anyone has photofact 885 (1967) my philco roundie should be in there, model Q5528WA, chassis 17MT80B. If you have a moment, can you please tell me the values of the individual pots for the following:

AGC
Noise Inverter
color killer

I need the values so I know what pots to buy so I can bring this set back into service.

Thanks-Doug

AGC = 100K

Color Killer = 2000 ohm

Noise Inverter = 10K

Somehow in my small collection of about 100 Sam's folders, I happened to have this one...Good Luck, that's a nice set.

Thanks max!