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Subscriber loudspeaker "Ufa" presumably since 1953 produced an unidentified plant. The AG is similar in design to the Ufa and Seagull models of 1951, but differs from them in design. The AG is designed to listen to a wired broadcast program, with a voltage of 30 volts in the radio network. The AG is equipped with a rheostat volume control and a transitional transformer. Range of working frequencies is 150 ... 5000 Hz. Rated input power 0.25 watts. AG mass - 1 kg.