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I'm in the same situation as chrisw71. I picked up a (late '70s?) Astro-Sonic and this thing is pretty sweet, but the scratchy pots are the first on my list of things to fix up.
I also want to see about replacing what looks like the crossover, the speaker wires go from the amp, to the component, then to the speakers (theres two 'components', one for each speaker). From a wiring diagram I found nicely taped inside the console, it looks like some kind of RLC circuit, with a resistor, inductor, and capacitor all in parallel. I had problems with the left speaker cutting in and out, but wiggling the wires on this thing seemed to help, for now. I'm gonna replace 'em, Any ideas guys?
Third on my list of things to do are to replace some of the old capacitors/transistors, or maybe even build a new amplifier from scratch, though that is probably a lengthy project. Does anyone have a service manual, or wiring diagrams, or something that could be useful??
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