Stereophonic tape recorder "Yauza-10".
Tape recorders and radio tape recorders.Since the beginning of 1961, the Yauza-10 stereophonic tape recorder has been produced by the Moscow Electromechanical Plant No. 1. "Yauza-10" is the first domestic stereophonic four-track tape recorder. It has two tape speeds; 19.05 and 9.53 cm / sec. For stereo recording, it works as a two-track, for monaural, it works as a four-track. The model uses a two-channel stereo sound recording and reproduction system, for which two small-sized acoustic systems are used, which consist of wide-range loudspeakers. In addition, the tape recorder has a control loudspeaker. The tape drive mechanism of the tape recorder is designed for the use of coils No. 15 containing 250 meters of ferromagnetic tape. The sounding time of the coil in stereo recording is 2x22 minutes at a speed of 19 and 2x45 minutes at a speed of 9. In monophonic 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 a tape of type 6 for operation with which the tape recorder is designed, the operating frequency band is 40 ... 15000 Hz at a higher speed and 60 ... 10000 Hz at a lower speed. With an output power of 3 W the THD of the through channel is 5%. Detonation at a speed of 19.05 cm / s - 0.4%, at 9.53 cm / s - 0.6%. The dynamic range of the end-to-end channel is 40 dB. The transition level between tracks on the through channel for stereo recording 30 dB, mono 40 dB. LF and HF timbre controls provide a 10 dB drop in frequency response and a 10 dB increase in LF timbre. When using a magnetic tape of type 2, the range of operating sound frequencies is narrowed and the frequency response mismatch 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. Power consumption when recording 110 W. The dimensions of the tape recorder are 395x370x210 mm. Remote speakers 365x300x200 mm. The weight of the device is 14.5 kg, the external speakers are 4.5 kg together. The price of a tape recorder is 400 rubles. Changes have been made to the tape recorder circuitry several times. Its release ended in 1967.
