Network tube radio receiver `` Baltika-52 ''.
Tube radios.DomesticSince 1952, the network lamp radio receiver "Baltika-52" has been produced by the Riga radio plant "VEF", the Gorky plant ZIL (named after Lenin) and the Kharkov plant named after Shevchenko (ZISH). Since 1952, the modernized radio receiver Baltika-52 began to be produced. Unlike the previous one, it was a seven-lamp one: 6A7, 6K3.6 X6S, 6Zh8, 6P3S, 6E5S and 5TS4S superheterodyne, with a lower output power (1.5 W) than the previous radio, but with a much higher sound pressure due to application of a new type of loudspeaker with a common-mode, electric magnet. The low frequency amplifier circuit was redesigned, due to this, nonlinear distortions were reduced from 7% to 5%. Long-wavelength range extended to 415 kHz. The type of the radio receiver and other indicators are the same as those of the “Baltika” receiver.
