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SX-190 buzz in audio

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November 1st 03, 03:35 AM

Mike Knudsen

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In article , (Scott Dorsey)
writes:

Any idea of what was wrong with the power trans inside, or did you just
replace
it and throw it away? Maybe the shielding between the windings was kaput.

Insulation breakdown.

OK, so it was arcing internally, and getting ready to let smoke out, in great
puffs :-)

I have a cheap AM/FM clock radio that sounds like light-dimmer power line
noise
even on FM.

It has a vacuum fluorescent display, doesn't it? Disconnect the display
and it'll be quiet.

Kinda spoils the fun of a clock radio, especially when the radio sux but the
clock is very reliable (keeps perfect time during power outages).
Seriously, this is a big red LED display. The vacuum flourescent jobs are
actually electron tubes, were used back in late '70s on clocks and Gottlieb
pinball machines.

Most good SW portable radios do have s wticht to kill the digital readout,
though -- good idea. --Mike K.

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