Radio receiver and radiola network tube "Kharkov".
Network tube radiosDomesticSince 1957, the radio receiver and radiola network tube "Kharkov" have been producing the Kharkov Shevchenko Plant. The receiver is similar in design, design and construction of the electrical circuit to the Mayak radio receiver. Ranges of received frequencies: DV, SV standard, in KV-1 8.5 ... 12.1 MHz, KV-2 3.95 ... 7.65 MHz, in the FM range 64.5 ... 73 MHz. Sensitivity in the ranges of DV, SV 200 µV, both HF 300 µV, in the VHF-FM range of 20 µV, with a pickup adapter 0.15 V. Selectivity on the adjacent channel 26 dB in AM bands, 20 dB in VHF-FM. Selectivity on the image channel is 36 dB in LW, 20 dB in MW and 14 dB in HF subbands. When receiving in AM, the range of reproducible sound frequencies is 100 ... 4000 Hz, in FM 100 ... 7000 Hz. Rated output power on two loudspeakers 1GD-5 (later 2GD-3) 2 W. Power consumption 55 W. Applied lamps: 6N3P, 6I1P, 6K4P, 6X2P, 6N2P, 6P14P, 6E5S. There are tone controls for HF and LF, an IF bandwidth control combined with a tone knob. The dimensions of the receiver are 510x360x285 mm, its weight is 11.5 kg. Price 87 rubles 95 kopecks since 1961. Radiola, except for the addition of EPU and commutation, is similar to the receiver. After the modernization of 1959, the parameters of the models changed. Changed the sub-bands KV-1 3.95 ... 7.5 MHz and KV-2 9 ... 12.1 MHz, increased the sensitivity in HF to 200 μV, selectivity up to 30 dB in the LW and MW ranges, the audio frequency band in FM and the operation of the EPU became 80 ... 10000 Hz, in AM 80 ... 4000 Hz. Power consumption 60/75 W.
