[Lawrence Austin]

https://philcoradio.com/library/download...8-1949.pdf

Hello, I have been working on my Philco 48-1266. I am NO expert but have brought my other radios back to life. Four consoles: 36 and 37 Philco, 38 Zenith and 49 Westinghouse. Three tabletops: 2- 48 Westinghouse and a 48 Philco. Even wound coils for the first time on the 36 Philco.

First the audio section is working great! The push pull 6V6 will blow you out of the room playing a record. I can get the 3 local stations at a very low volume. The volume seems to be even lower in the lower freq. like 570kHz. Tuning it on the dial or the pushbuttons sound quality is exactly the same. Trying to align the IF starting on the audio side first 2 trimmers work fine but the third and fourth don't do anything. The other AM trimmers all work.

All electrolytics and paper caps were replaced. Out of spec resistors replaced. All coils checked for resistance. Tubes changed and tested. Voltages all seem good. Should I start testing the small caps out of circuit? My main worry is having to open the IF can with the 2 non-working trimmers. Looks like a headache to get the 1/4" nuts under the band selector. I did check the fixed caps in the other 2 IF cans. Any help narrowing down what to look at would be greatly appreciated.