03-24-2008, 12:36 AM
Well see this is what's funny. I can use about 1' of wire, and it does this. Then I connected 6', and it's gone. Then I connect up to my 150', and it does it. I can add 20' to the long wire and it's gone. I've done this several times playing with antenna wire length and it changes depending. Also operating with no antenna it gets really bad! I haven't tried the tube tap yet. But when it operates properly(again, depending on antenna length) it doesn't have this microphonic sound when tapping the chassis. I should note the shadow meter is out of the set. Could this effect the load on the AVC possibly causing this? Also I'll check the schematic over next time I have it out. Someone did get their fingers in this set and performed a couple of not so good repairs. You could be right.
-Brian
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