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In Reply to: RE: "ghost" frequency coming over vintage Hitachi receiver? posted by waltjohns on October 31, 2015 at 21:09:56
Try changing the connecting RCA cables.
Follow Ups:
Hmmm ... the record player has a cable that comes out of the back, so I can't change that. I tried unplugging the tape player from the receiver and turning it on and off and there was no change.
AC socket on the wall or one on the back of the receiver, to power the turntable. That is, in addition to the twin RCA lead for the phono audio signal out and into the rcvr, to amplify it.It might also have a ground wire coming out of it. Many if not most turntables do.
So it is most unlikely that the turntable has only one lead coming out of the back.
Inspect the signal leads right back into the turntable and look for a thin third one that has been cut off or left inside the turntable.
It's a rcvr - so it just WILL have antenna terminals. So, there will be a ground terminal for both AM and for FM, and it might be just a single shared Gd terminal for all radio and phono. Try it with the ground wire from the turntable.
Also put an actual FM antenna on to those terminals and a single length of wire on the AM antenna post. That can't hurt.
I have to ask. Why did they buy an FM receiver if they weren't going to attach an antenna - to receive FM - to it? Most of them come with a basic T antenna in the box for this purpose. Connecting it is a vital step if you want to receive FM signals at all well.
LBNL the rcvr just might need repair.
Warmest
Tim Bailey
Skeptical Measurer & Audio Scrounger
Edits: 11/03/15
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