[TA Forbes]

Have you done additional checks to see if there is a short to chassis where there should not be one? Agree that it should be in the front of the radio circuitry, but a short will often give misleading indications.

I know that this sounds like a pain in the keester, but I used to specialize in the early 30s Crosley sets and they can be a real bear to troubleshoot.
In fact, one of the toughest I had was a model 148.