Subscriber loudspeaker `` North ''.
Subscriber loudspeakers.DomesticSince 1952, the subscriber loudspeaker "Sever" has been produced by the Tomsk Plant of Measuring Equipment. Standard subscriber loudspeaker of the 4th class in accordance with GOST 5961-51 for a 30-volt radio broadcasting network. The volume control provides a 20 dB change. Rated power consumption 0.2 W. The band of reproducible sound frequencies is 250 ... 3000 Hz. Input impedance 4.5 kOhm. Dimensions AG - 230x300x110 mm. Weight 2.5 kg. For the Moscow city network, the loudspeaker was produced for a voltage of 15 volts.
