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Since 1949, the universal one-track tape recorder "MAG-5" has produced the trust "Gosteasvet". The tape recorder is designed to record and play phonograms at speeds of 77 and 38.5 cm / sec. The playing time of one coil is 22 and 44 minutes, respectively. Used electric motors: ICE-U1 and DPA-U2. Applied magnetic tape type "C" or "1" in rolls of 1000 meters. The operating frequency range is 50 ... 10000 and 70 ... 7000 Hz, respectively. Recommended microphone MD-30. Applied radio tubes: 6ZH8 (5), 6П6 (3), 6Ð7 (1), 5Ц4С (1). The rated output power of the LF amplifier is 5W. The type of loudspeaker used is 4A-1. Power consumption of 400 watts from the mains. Knock factor 0.2%. Until 1954, the second speed was equal to 45.6 cm / sec. while the operating frequency range was 60 ... 8000 Hz. and the playing time is 33 minutes. In the tape used separate recording and playback amplifiers.