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Vintage Stereo, Amplifier and Radio Restoration
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Suicide Varistor Diode
Many times there are vintage pieces of audio gear that have components that are destructive if left as-is. Transistors and diodes are top...
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Aug 7, 20221 min read
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A rare Optonica SM-4646 integrated amp!
A long-dead division of Sharp Electronics in Japan, this extremely rare amp was their attempt to break into the HiFi market. Too little...
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Jul 11, 20221 min read
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How does a receiver or amplifier shed heat?
Every receiver or integrated amplifier generate heat of varying levels. The output processors on the amplifier board are just one of the...
Admin
Sep 1, 20212 min read
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Time for some clock gears
An old TFM-C720 from 1972 getting a replacement gear. The motors, made by Copal Denki in Japan, were very robust and simple....
Admin
Aug 27, 20211 min read
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Crispy power switch on a JDM Pioneer SA-8800 (SA-7500 in the US)
Over time, with these old machines, the power switch contacts get pitted and a little burnt from having full mains power (120v US)...
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Aug 26, 20211 min read
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Use that AUX port!
Similar to hooking up a turntable, using a Bluetooth receiver to stream music into your receiver or amp is SUPER simple. There are many,...
Admin
Aug 26, 20211 min read
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Turntable hookup basics.
It's already been talked about a lot on the interwebs, but I thought I'd post some basic setup steps for hooking your turntable up to...
Admin
Aug 25, 20211 min read
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