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The portable transistor "Rogneda" since the beginning of 1970 has been producing the Saratov Precision Electromechanical Plant. A third-class 'Rogneda' portable transistor elec- trophone is designed for semi-automatic playback of records with a diameter of 175 mm in stationary conditions and in moderate motion. The electrophone consists of an electric player and a bass amplifier on transistors. The amplifier has a sensitivity of 250 mV and a nominal output power of 0.5 watts. The model used loudspeaker type 1GD-28. The range of reproducible sound frequencies is 150 ... 6000 Hz. The engine is applied DRV-0,1. Disk rotation speed of 33 rpm. Power supply of the microphone is carried out from 6 A-373 elements, power consumed from batteries is 1.5 W. The dimensions of the microphone - 316x200x100 mm, weight 2.7 kg.