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Since the beginning of 1961, the Yauza-10 stereo tape recorder has produced the Moscow Electromechanical Plant No. 1. The Yauza-10 is the first domestic four-track stereo tape recorder in Russia. It has two speeds of movement of the magnetic tape; 19.05 and 9.53 cm / sec. With stereo recording, it works like a two-track, with monaural, like a four-track. The model uses a two-channel stereo system for recording and reproducing sound, for which two small-sized acoustic systems are used, which consist of wide-band loudspeakers. In addition, the tape recorder has a control loudspeaker. The tape drive mechanism of the tape recorder is designed for use of the No. 15 coils containing 250 meters of ferromagnetic tape. The coil time for stereo recordings of 2x22 minutes at a speed of 19 and 2x45 minutes at a speed of 9. With monaural recording, the time increases to 4x22 and 4x45 minutes. The acoustic parameters of the tape recorder depend on the speed and type of tape. When using tape type 6 to work with which the tape recorder is designed, the operating frequency range is 40 ... 15000 Hz at a higher speed and 60 ... 10,000 Hz at a lower speed. With an output power of 3 W SOI through channel 5%. Detonation at a speed of 19.05 cm / s - 0.4%, at 9.53 cm / s - 0.6%. Through-channel dynamic range 40 dB. The transition level between tracks through the channel through stereo recording 30 dB, mono 40 dB. The bass and treble tone controls provide 10 dB of amplitude response and the bass tone also boosts 10 dB. When using a type 2 magnetic tape, the working sound frequency range is narrowed and the frequency response between the channels increases, the dynamic range and transient levels decrease. Sensitivity from a microphone 3 mV, from a pickup 200 mV, radio lines 2 V. The power consumption when recording 110 W. The dimensions of the tape recorder are 395x370x210 mm. Remote speakers 365x300x200 mm. The mass of the device is 14.5 kg, the remote speakers are 4.5 kg together. Price tape 400 rubles. In the scheme of the tape recorder repeatedly made changes.Its release was completed in 1967.