Old system components

I replaced parts of my system during the overall upgrade. I have a Sony tuner from the late eighties and a Sansui AU-505 stero amplifier from the seventies.

The amplifier lost one channel just before the upgrade but had a noisy volume potentiometer for sveral years before that, and a broken paddle swtich. I recently sw some Sansui paddle switches for sale on eBay. A new pot, or some contact cleaner will improv the amp's condition. Fortunately, I'm trained as an electronics engineering technician and have a DVM and ocsillosope to use in troubleshooting the amp.

A website on the web archives old audio gear data including schematics for some. I found the Owner's guide and a set of scematics and service manul for the Sansui amp. This gives me everythin I need to find the problem.

The Sony tuner is still good.


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