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The electric player without a name has been produced since the beginning of 1941 by the Leningrad Factory of Radio Products. The device is designed to play standard phonograph records at a speed of 78 rpm together with any radio receiver having an adapter input for a magnetic pickup. The MS-1 synchronous engine, when turned on, began to rotate only with manual unwinding. The electric player had an electromagnetic pickup with an output voltage of up to 1.5 volts and a range of reproducible frequencies of 100 ... 5000 Hz. Needles in the pickup used gramophone. Food only from the power supply network of 127 volts.