[jerryhawthorne]

Off to the shop to attack the pesky radio. One of my brain cells fired about 5AM when I couldn't sleep and I thought "what about the muting control"? Silly little devise in the tuning dial which I have had trouble with in the past. Naw, the finger test provided a very strong hum. Couldn't be. Thought a little more and remembered I was working on the top of the chassis at the time and instead of turning it over I applied the digit to the grid cap of the first AF tube not to the center tap of the volume. They are separated by a cap. This morning the first thing I did was measure the center tap to ground and indeed it was at ground. Works great now but need to do a little work on that muting devise to insulate it better.
Happy ending and I learned a lot about that type of detector and got to tear apart an IF can and not break anything. Can't wait to give this chassis back to the owner.
Thanks for all your help, Brenda and Mortz.
Jerry