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Since 1945, the tube radio receivers of the 7N-27 and Vostok type have been manufactured by the Novosibirsk Radio Plant No. 590 NKEP, MPSS.
The plant at the end of 1944 developed and prepared for release a 7N-27 radio receiver, which stands for 7-lamp, Desktop, 27 development.
After a small batch released, the radio was modernized and became known as the `` East ''.
The two-stroke LF power amplifier on 2 6F6S lamps was replaced by a one-stroke power amplifier on a 6P3S lamp, and the block for switching the mains voltage and the fuse from the power transformer was transferred to the rear wall of the chassis.
Nothing else has been changed.
Any of the radios is powered by an alternating current electric network in the ranges of LW 150 ... 420 kHz, CB 520 ... 1600 kHz, as well as in two subbands of HF 4.3 ... 10 MHz and 11.5 ... 15
, 6 MHz.
The average output power of the receiver amplifier is 3.5 watts.
Power consumption from the network is about 100 watts.
The dimensions of the radio are 585x345x272 mm.
Its mass is 18 kg.