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Hello everyone! I have a question about the 1972-3 Rhodes Suitcase Piano power amp (Peterson 4 pin). The power transistors are no good. These are germanium and have no data sheet info and are no longer made Delco 020725. I would like to find out what modern transistor might work.. I believe a reverse engineering might be necessary. here is the the schematic…<img src=" removed link ” />
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Posted : 15/01/2026 11:39 pm