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The cassette stereo tape recorder "Electronics M-402S" has been producing the Zelenograd TochMash plant since 1989. The device is intended for recording of phonograms on a magnetic tape and their reproduction. Recording can be done from a built-in microphone or external sources. Listening to stereo phonograms is possible on stereo phones or through an external stereo amplifier with speakers. In mono mode, you can use the built-in loudspeaker to listen to phonograms. The device includes: auto-stop at the end of the tape, the ability to pause in recording and playback modes, light indication of power in all operating modes, switching the tape type in playback mode, automatic switching of the tape recorder from stereo mode (when working with stereo phones) to mono mode (during operation on the built-in loudspeaker). The "M-402C Electronics" tape recorder is powered by 3 A-343 elements or from a 220 V mains via a type of Electronics D2-34-2 type PSU. Nominal output power on stereo phones 3 mW, on a loudspeaker 150 mW; full frequency range when working with a tape: IEC-1 - 63 ... 12500; 44dB weighted signal to noise ratio; operating time from a fresh set of elements at least 5 hours; tape recorder dimensions - 221Ñ…40Ñ…113 mm; its mass without batteries and cassette 1 kg.