Hello all I am new to the forum and I have an issue i am stumped on I have a 148 gtl fand the mic gtain has no effect at all. I can turn it down and it is still wide open i have replaced the potentiometer with no success and also changed the audio amp transistors. Nothing else has been modded and vr 11 still controls the ssb output. It is avery special radio to me and i need to get it figured out. Can anyone give me any sugjestions as to where to look. thanks in advance