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The transistor "Leader-205" electrophone has been manufactured by the Saratov "Korpus" plant since the beginning of 1976. '' Leader-205 '' is a second-class portable transistor monaural microphone with universal power supply from batteries or from AC mains, with a voltage of 220 V. The microphone is intended for playing mechanical sound recordings from long-playing records of any formats with a disk rotation speed of 33 and 45 / min on built-in 2GD-40 loudspeakers. In the microphone there is an adjustment of timbres on the low and treble. The range of reproduced frequencies is no longer 100 ... 10000 Hz. Rated output power when powered by a battery of 0.5 W, the mains 2 watts. Maximum 1 watt and 4 watts. Nonlinear distortion coefficient - 3 ... 4%. The power consumption from the network is 20 W, from the batteries 2.5 W. Electrophone dimensions - 380x260x150 mm, its weight is 7 kg.