Subscriber loudspeaker `` Baltika ''.
Subscriber loudspeakers.DomesticSince 1954, the subscriber loudspeaker of the 2nd class "Baltika" has been producing the Leningrad plant named after Kulakov and the Porkhov relay plant in the Pskov region. AG is designed to work in a wired broadcast radio network, with a voltage of only 15 or 30 volts. Volume control in the first releases was carried out by switching the secondary winding taps of the transitional transformer, later traditionally, by a potentiometer. Since 1956, the external design of the loudspeaker has been changed.
