11-05-2014, 07:26 PM
Hi Dave, Welcome to the Phorum. I'm probably not the guy to help diagnose your problem but there are some pretty knowledgeable folks on here who can help. When asking for help on a radio it helps to post a link to the schematic. Unfortunately I see the 37-604 does not show up in the Nostalgiaair schematics. Do you have a schematic and if so I suggest posting a link to it or including it as a picture image in a post. That's a neat looking radio!
If you don't have a schematic then you can get some good clear copies from Chuck Schwark for only a few bucks.
If you don't have a schematic then you can get some good clear copies from Chuck Schwark for only a few bucks.