I had the supply rebuilt 2 years ago and noticed that if I lay my finger tips on the top of the speaker cabinet I can feel a vibration as soon as I turn on the transmitter switch. On 40 meters I can hear some audio distortion or a frog in the throat sound to the audio. Anyone else have that issue on 40 meters? Caps were replaced according to the guy that rebuilt the supply and did the other tune ups on the rigs (T4XB & R4B). If I take it back to him again it will probably cost me another small fortune to have him check it out or repair it. Any ideas? Power supply was working fine when I took it to him but I allowed him to talk me into a rebuild because it was old and it sounded like the right thing to do at the time .I am not sure now if he installed the new circuit board at that time or if that board was even available then. Thanks 73 Fred WD8ADG
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