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Since 1947, the Alexandrovsky Radio Plant has produced the radio tube net Record-47, and since the fall the Berdsk and Petropavlovsk Radio Plant since the fall. Kirov. The radio Record-47 is an upgrade of the Record receiver, model 1946, Alexander Radio Plant. Like its predecessor, the radio receiver has a combined supply of direct and alternating current. The technical characteristics, in addition to sensitivity and different frequency converters, by the construction of the scheme - the devices are almost the same. Technical parameters of the RP: Range: DV: 150 ... 415 kHz. SV: 520 ... 1500 KHz. KV: 4.28 ... 12.1 MHz. Sensitivity to: DV: 75 ... 120 µV. SV: 60 ... 100 μV. KV: 130 ... 150 µV. ± 10 kHz selectivity. DV: 26 dB. SV: 20 dB. KV: 10 dB. Selectivity on the mirror channel: DV: 26 dB. SV: 20 dB. KV: 4 dB. Output power 0.5 watts. IF: 110 KHz. Power consumption when powered from the network 127 volts 60 watts. When powered from 220 V 95 watts. The weight of the device is 8 kg. The design of the first releases was slightly different from subsequent receivers.