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The transistor "Wave-307-stereo" electrophone has been producing Saratov"™s Korpus software since the beginning of 1986. The "Wave-307-stereo" universal power supply microphone is intended for listening to phonograms from mono and stereo records of any formats. The drive drive is straight, from a special low-speed electric motor. The microphone provides for the adjustment of timbre at the lower and higher sound frequencies, the possibility of expanding the stereo base. The power supply is universal, from the mains voltage of 127 or 220 V or from six elements 343. Disk rotation frequency is 33 rpm. The sound detonation coefficient is 0.2%. The output power of the low-frequency amplifier 2x2 watts. The range of sound frequencies effectively reproduced by our own speaker system is no longer 100 ... 10,000 Hz. The power consumed from the electrical network is 18 W, from the batteries not more than 10 W. Electrophone dimensions with EDU - 480x260x120 mm. Weight - 6.5 kg. Retail price of 80 rubles.