Angara 1951
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Since 1951, the subscriber loudspeaker "Angara" produced the Lviv Telegraph Equipment Plant. Subscriber loudspeaker `` Angara '' (type 0.2GD-IV-2) completely repeats the design of AG `` Tula '' of 1949, with the exception of the calculated voltage of the broadcasting network, here it is 30 volts, while the basic model was produced for 15 and 30 volts. The main difference between Angara and other subscriber receivers of this type, as in Tula AG, is the loudspeaker itself, all its mechanical and electrical parts are inside the diffuser. Angara reproduces the audio frequency band from 150 to 4500 Hz with a supplied electric power of 200 mW and develops a sound pressure of 3 bar. The maximum distortion ratio is 7%. Ag weight 1.1 kg.
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Information from collection of Valery Khartchenko