Nota 1964
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Tape consoles Nota and MP-64 were produced by the Novosibirsk Electromechanical Plant since 1964, and the prefix MP-64 was also produced by the Omsk Electrotechnical Plant named after K.Marx. MP `` Nota '' is designed to record and play back phonograms from a microphone, pickup and radio transmission line. To listen to the phonograms, the prefix must be connected to the amplifier of the bass receiver or TV. The prefix uses a 2-track recording system. The speed of the magnetic tape 9.53 cm / sec. The prefix is "u200b"u200bequipped with coils No. 15, containing 250 meters of tape. Recording time 2x45 min. The nominal output voltage of the amplifier is 0.6 V, the band of recorded and reproduced frequencies on a tape of type 6 is 63 ... 10000 Hz, the coefficient of nonlinear distortion is 3%; noise level and background no worse than -40 dB. CVL detonation coefficient 0.6%. The prefix is "u200b"u200bpowered from a network with a voltage of 127 or 220 V, consuming a power of 50 watts. Dimensions of the console 350x260x140 mm. Weight 7.5 kg. The MP-64 prefix on the electric circuit and design does not differ from the Nota prefix, but does not have a case. The model was produced for various industrial needs, for example, for integration into special school desks for learning a foreign language. Since 1965, the Berdsky Radio Plant has been producing the Record radio tape recorder where the MP-64 tape recorder was built-in. In 1966, the prefix, after a slight improvement in the electrical circuit, became known as "MP-64A." ,null,ru,null,null,null,null
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Information from collection of Valery Khartchenko