[John Bartley]

First of all, I think that the schematic I am attaching is correct, but .... be careful with it.

Second, the easiest and usually the fastest way to identify "why" something is not working is to trouble shoot it logically. Start by injecting an audio signal from your generator into the speaker and from there work back thru the stages until you get to the detector at which point you switch to the IF frequencies (different for AM and FM) and keep working back until you lose the signal.

The stage where you lose the signal is the problem.

The schematic (I think) ::

http://www.nostalgiaair.org/pagesbymodel...024133.pdf