Sorry, this page is not translated yet. Automatic translation used.
The electric players "GP-46" and "GP-55", respectively, from 1946 and 1955 produced the Moscow Experimental Plant "Agregat". The electric player "GP-46" (Gramophone Prefix 46 years old) is designed to play standard LPs at a speed of 78 rpm together with any radio receiver having an adapter input for a magnetic sound pickup. Under the top cover, the letters "MMZ" were printed, a kind of factory business card, a logo. After the plant was renamed the license plate under the top lid there was '' No. 615 ''. The MS-1 synchronous motor, when turned on, began to rotate with only a small amount of 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. The needles in the pickup were used gramophone, loud or quiet tone had no effect on the sound quality compared to the gramophone. This was explained by the lower weight of the pickup, compared with the gramophone. The piezoelectric pickup PZ-1, which the factory installed on the electric player since 1950, provided even less of a load. The second version of the player has been produced since 1955 under the name '' GP-46U '', according to some sources '' GP-55 ''. It was a two-speed 33.78 rpm with a piezoelectric pickup, two corundum needles interchangeable with rotation depending on the speed of the record being played. The engine was already asynchronous with auto start.