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Motorboating question for the experts
NostalgiaRadioTime
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City: West Bend, Wisconsin
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01-12-2013, 12:32 AM
Just finished a total re-cap, and out of tolerance resistor replacement on a PT-2 Transitone (the tubes all check out good too). When the volume is wide open, the radio picks up all the local stations faintly (at what would be low volume). As soon as you turn down the volume, nothing comes in but major motorboating. Tried reversing the leads on the volume control thinking it was hooked up wrong, but it made the motorboating problem worse. So that wasn't it. My question is, could the motorboating be caused by a faulty volume control, or possibly a bad speaker transformer? Or is there a certain way the volume control wires need to be placed to eliminate interference? I did spray the volume control with DeOxit a week ago, so the mechanism should be clean. Thanks in advance Icon_e_smile
Greg V.
West Bend, WI
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Motorboating question for the experts - by NostalgiaRadioTime - 01-12-2013, 12:32 AM



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