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Reel tape recorder "Rostov-112-stereo" in 1988, experienced (~ 10 pieces) released the Rostov plant "Pribor". The stereophonic tape recorder of the 1st group of complexity with the use of integrated circuits "Rostov-112-stereo" provides recording of mono and stereophonic phonograms with their subsequent reproduction through remote speakers or stereophones. In the tape used: three-engine LPM; automatic control of magnetic tape tension; automatic stabilization of tape rewinding speed; electronic logic control of work modes, allowing you to select work modes in any sequence; glass ferrite magnetic heads, characterized by increased wear resistance, as well as an electronic tape flow meter with devices "Memory", "Autosearch". It is possible to: perform trick recordings by mixing the signal from the "Microphone" input and any other; automatic stop at the end or break of the tape; control the level of recording or playback of electronic fluorescent indicators; light indication of operating modes "Record", "Working stroke", "Pause", "Stop"; control with the help of a pseudo-touch switch modes of operation of the LVL; remote control of operating modes: "Rewind", "Playback" and "Stop"; control of the recorded signal in the "Record" mode; automatic shutdown of remote speakers in case of amplifier malfunction; operation of the tape recorder in the "Amplifier" mode; light indication of inclusion in the grid. The presence of separate magnetic recording / playback heads makes it possible to listen to the recorded signal while recording. The kit also includes a tape recorder two coils (including a reel with magnetic tape). Type of magnetic tape A4416-6B. Coil number 18; 22. The speed of the magnetic tape 19.06; 9.53 cm / s. The maximum recording time during playback is 2x45; 2x90 min. The working range of sound frequencies is 25 ... 25000; 40 ... 14000 Hz. Knock factor is no more than ± 0.09 and ± 0.15%. The harmonic coefficient at the linear output is no more than 1%. The relative level of noise and interference in the recording-playback channel is -63 dB.Output power: maximum 2x50 watts, nominal 2x15 watts. The input impedance of an external speaker is 4 ohms. Power consumption 200 watts. Dimensions of the model 510x417x225 mm. Weight 23 kg. Since 1990, according to the new GOST, the plant produced the "Rostov MK-112C" tape recorder, a complete analogue of what was described.