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The translational amplifier "UTS-50-1" was produced from 1940 by the All-Union technical office "Soyuztehradio". The amplifier is designed for broadcasting nodes of collective farms, workers' settlements, clubs, stadiums, etc. With an average output power of 10 W, the amplifier provides up to 300 ... 400 loudspeakers of the "Record" type in the load of broadcast radio lines. Output frequency range 50 ... 8000 Hz.