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Hello all, I've come upon a 1956 Bogen RR-501 mono receiver in decent shape and was thinking of giving it a little restoration but I cannot find schematics anywhere. The Radio Museum lists one, but it turns out to be for the RR-501-B, which is a bit different. Nothing at Hifi Engine or in...

Greetings Yamaheads, Recently I had the good fortune to run into a free CR-450. This is my first experience with Yamaha and a search for info for this unit quickly revealed that relatively little is known about it. The consensus seems to be this was an update of the CR400 to better handle 4ohm...

I'm embarking on a recap of my SA-8100 and have been putting together a list and figured I'd post it here for vetting by the resident gurus. Nothing exotic, but I do wonder if I made the right choice in film caps to replace some small .22uf and .47uf Sanyos. Hopefully others will find this...