Rotel RA-931

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rotel stereo integrated amplifier ra-931 testing with my little helper

this is a rotel ra-931 I bought along with a bunch of pioneer units today! Works good!

Rotel RA-931

Rotal RA-931 Integrated Amplifier Ser:838 181651

Rotel 931 modifications

Power supply modifications opamp replacement and manyy othet curcuit changes.


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