Belarus' 1950
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Since 1950, the radio network receiver "Belarus" has been producing the Minsk Radio Plant. It is a 13-volt 6-band superheterodyne class 1 with mains power. The design was borrowed from the 1939 Blaupukt-8w79 receiver. In addition to the smooth tuning, the receiver has a fixed button-tuning device for 6 pre-selected radio stations. Two buttons in the range of DV and four in the CB. The receiver is assembled in a wooden box of 690x305x455 mm in size and trimmed with walnut veneer. On the front panel of the receiver there is a vertical scale, a loudspeaker and knobs, control buttons and an optical pointer. The control of the receiver is as follows: left small knob volume, large knob for treble, medium small knob for low tone, large knob IF bandwidth control, right small knob band selector, large knob for smooth tuning. The receiver operates in the ranges of DV 2000 ... 732 m, NE 577 ... 187.5 m, KV-1 55.3 ... 32.3 m, KV-2 31.9 ... 30.6 m, KV-3 25.8 ... 24.8 m, KV-4 19.9 ... 19.4 m. IF 466 kHz. Power consumption 180 watts. Rated output power 4 watts. Sensitivity on all ranges of 50 µV. Sensitivity from pickup sockets is 0.2 V. The frequency of the local oscillator is 10 minutes (after 5 minutes of warm-up) on LW and SW 1 kHz, on HF up to 4 kHz. The frequency band of sound reproduced by the speaker system is 80 ... 6000 Hz. Adjacent channel selectivity is 60 dB. Selectivity on the mirror channel: on DV 50 dB, CB 42 dB and KV 26 dB.
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Information from collection of Valery Khartchenko