Portable transistor electrophones "Leader-302" and "Rogneda-302".
Electric record players and electrophones on semiconductorsDomesticTransistor portable electrophones "Leader-302" and "Rogneda-302" have been produced since the 1st quarter of 1970 by the Saratov Plant of Precision Electromechanics, later on by PA "Korpus". Portable electrophones of the 3rd class "Leader-302" and "Rogneda-302" are designed for semi-automatic playback of phonograph records with a diameter of 175 mm in the hospital and with moderate movement. They consist of an electric player and a bass amplifier on transistors. The amplifier has a sensitivity of 250 mV, and a rated output power of 0.5 W. The loudspeaker type 1GD-28 is used in electrophones. The band of reproducible sound frequencies is 150 ... 7000 Hz. The DRV-0.1 engine used in the old model of the Rogned electrophone has been replaced with a new DLF-1. Disk rotation speed 33 rpm. Electrophones are powered from 6 A-373 elements, power consumption does not exceed 2 W. The dimensions of the microphone are 316x288x104 mm, the weight is 2.7 kg. The design, wiring diagram and appearance of the models are the same. Electrophones were produced in 2 names to expand the range of products.
