Transistorized microphone `` Volna-307-stereo ''.
Electric record players and electrophones on semiconductorsDomesticTransistorized microphone "Volna-307-stereo" from the beginning of 1986 was produced by Saratov PO "Korpus". Electrophone with universal power supply "Volna-307-stereo" is intended for listening to phonograms from mono and stereo phonograms of any format. The disc drive is direct, from a special low-speed electric motor. The elektrophone provides a tone control for the lowest and highest sound frequencies, the possibility of expanding the stereo base. The power supply is universal, from a mains voltage of 127 or 220 V or from six elements 343. The rotational speed of the disk is 33 rpm. The detonation coefficient of sound is 0.2%. The output power of the low-frequency amplifier is 2x2 W. The range of sound frequencies effectively reproduced by its own acoustic system is not more than 100 ... 10000 Hz. The power consumed from the electrical network is 18 W, from the batteries no more than 10 W. Dimensions of the electrophone with EPU - 480x260x120 mm. Weight - 6.5 kg. Retail price 80 rubles.
