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Portable reel tape recorder "Gamma" was planned for release in 1967. Photos of the tape recorder could not be found, set the manufacturer too. "Gamma" - a two-speed 9.53 and 4.76 cm / s dual-track portable class 3 transistor recorder powered by eight A-373 elements or from a network via a remote power supply unit. The management of the LPM keyboard. The tape recorder is designed for No. 13 coils and a type 6 magnetic tape with a recording time of 2x30 minutes at higher speed and 2x60 minutes at lower speed. The frequency range is 63 ... 10000 Hz at a higher speed and 63 ... 5000 Hz at a lower speed. Rated output power 0.5 watts. Knock factor of 0.4 and 0.6%, respectively. 1GD-28 loudspeaker. Engine DKS-16. Dimensions of the device 295x265x93 mm. Weight 5 kg. No other information.