Because of lockdowns at the DMV and trouble with getting appointments I have not really worked on my old cars for almost a year.
When I was a kid I used to collect broken TVs and radios off of the street corner and repair them or scrap them for parts. Since I put together a new work shed, I finally have a good place to do electronic projects and I’ve been hanging out there late at night.
Here is an old Sanyo quadraphonic receiver from the 1970s that I am rebuilding. It needed a new on off switch and a lightbulb and extensive cleaning of all the controls, the glass, lamps, and tuner mechanisms.
It still needs a new main filter capacitor on the power supply, as after 45 years this one is starting to get weak. If this receiver had had any serious play time that would be totally shot right now but mostly this thing sat around in a closet for almost 40 years.
It has nice milled aluminum knobs, and I spent a lot of time cleaning up all the brushed aluminum nicely.

I tested each channel last night and now I am ready to set it up and test all four channels at full power. Theoretically, 16 watts x 4 into 6 ohms.
I started working on this much nicer Realistic receiver. This one is 120 watts x 2 With much better distortion specs. It is also one of the first big Dolby units.
At some point this thing had the outputs shorted at power, & the main power transistors capacitors and bias resistors are all probably fried. Fortunately the parts are still available and generally high-quality.
Of course I needed music to work by so I assembled an audio system in my shed from old components that I had laying around, powered by a used computer power supply.

I’ve been hoarding these 7.5” mid range speakers for years and so I made a baffle board and put them up as a center channel.
