10-03-2014, 01:37 AM
Hi fields, I am a little hazy about what you said in your last post. What is the frequency reading +455 with the plates of the tuning cap fully open, and fully closed? If these correspond with the proper upper and lower frequencies of the receiver; and you are able to receive the expected local stations with the frequency from the oscillator reading properly, then the overall RANGE is now correct, which would seem to mean the inductance is correct. Is the problem that the stations in between the lowest frequency, and highest, are not spaced out correctly as you tune them ? Does there seem to be any pattern to this distortion ? Have you considered a mechanical source, a slightly bent plate on the tuning cap, or a dial drive problem of some type ? One trick I might try is to tune the radio by ear, using strong local stations at the top and bottom of the dial to set those, and see what happens in between. I hope some of these thoughts are helpful. (as I write this the nostalgia air site seems to be down, so I couldn't read the schematic. Had to do this off the cuff)