RCA Theremin Service Notes

RCA’s Service Department originally printed these service notes as a stand-alone document. It was subsequently reprinted as part of the RCA Victor 1929–1930 Service Notes, available to authorized field service radio technicians. Originally meant to acquaint them with the theremin’s unconventional circuitry and to facilitate repairs, it is safe to say that very few of the RCA Service Notes’ original readers ever actually encountered a theremin. Original copies of the higher quality standalone RCA Theremin Service Notes are now exceedingly rare. The document provides a wealth of information, including schematics, line illustrations and photographs of the RCA Theremin and its various components. You will also find critical details about the function and adjustment of each and every key circuit, including internal operating voltages and a troubleshooting chart. This new edition has been exactingly recreated by designer and theremin authority Mike Buffington. It matches the original and