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December 11th 05, 06:29 PM posted to rec.radio.shortwave

Telamon

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Radio Receiver

In article .com,
wrote:

I bought 6 stereo receivers last summer at yard sales. Two of them
were perfect and the others had problems but were sort of working. The
most common problems we one of the final amps blown, a blown fet in
the fm rf amp, scratchy controls, and intermittent capacitors. The main
reason people got rid of them was updating to new digital equipment and
they had been in use since the 70s. As far as I know, Pioneer made
pretty good stuff and you might get lucky. There were so many of them
around, I didnt bother to fix them (average cost=$2). I would make sure
the speakers were working and not shorted and hook them up, power up
and hope for the best. Some of these receivers had poor AM sections and
you might have to play with an antenna. Many people want the latest and
best and throw out perfecly good analog equipment that still produce
cheerful sounds. I still use casettes and they sound pretty good to me.

The outputs are usually blown because someone shorted the speaker wires.
You can usually figure out that the finals and their drivers are damaged
with a DVM. Sometimes non-polar electrolytic capacitors in the feed-back
loop will be damaged. These will be in the 1 to 20 uF range. You might
also find a current steering diode or two blown in the higher output
amplifiers.

--
Telamon
Ventura, California

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