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The transistor "Ikar-303" network transistor from I quarter of 1986 was produced by the Yaroslavl Radio Factory. Electrophone is designed to play recordings from records of all formats. The model uses an EPU of the third group of complexity III-EPU-48, in which a GZP-310 type pickup is installed. Provided for adjusting the volume and tone on the treble. Network switch combined with volume control. The EPU model provides for a remote lowering of the sound pickup on a record and hitchhiking at the end of the treadmill. Playing records is possible with the lid closed. The main characteristics of the microphone: The disk rotation speed of 33 and 45 rev / min. The detonation coefficient is not more than 0.25%. The level of electrical background and pickup - 42 dB. The nominal output power of the amplifier of the microphone is 1.5 W, the maximum more than 2.5 W. The range of reproducible sound frequencies through its own speakerphone 125 ... 10000 Hz. Power consumption from the electrical network is not more than 30 watts. Electrophone dimensions 420x300x150 mm. Its weight is 6 kg. Retail cost EF 42 rubles. Since 1989, the phone has been referred to as "Icarus EF-303".