12-13-2018, 08:44 AM
By they way, for reference to anyone that can help me out with my FM problem, L406 is circled in blue and the tuning cap section for FM (C405) is circled (ovaled?) in red. Just 2 plates on the stator and one on the rotor. C405C...the trimmer for the FM tuning cap...is the small (maybe 1/4" - 3/8" diameter) circular device at the right side of the red oval.
I still haven't been able to make FM work. I've checked the relevant bandswitch connections, and I checked R410 and R411 (the schematic shows R410 as 33k, but mine has a 27k. The Philco documentation has a note that says it was changed to 27k at a certain point). It's very difficult to check the tuning cap sections since they are across L406 which is less than 1 ohm and is tied to ground at one end, but visually I see no problems. Any ideas?
Thanks
I still haven't been able to make FM work. I've checked the relevant bandswitch connections, and I checked R410 and R411 (the schematic shows R410 as 33k, but mine has a 27k. The Philco documentation has a note that says it was changed to 27k at a certain point). It's very difficult to check the tuning cap sections since they are across L406 which is less than 1 ohm and is tied to ground at one end, but visually I see no problems. Any ideas?
Thanks