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Network lamp radio "Sonata" was produced since 1963 by the Gorky plant named after Lenin. Radiol is a seven-lamp receiver combined with EPU. Rated output power 1.5 watts. Frequency range: DV 150 ... 408 kHz. MW 520 ... 1600 kHz. KB1 9.35 ... 12.1 MHz. KV2 3.95 ... 7.4 MHz. VHF 65.8 ... 73 MHz. Sensitivity in the range of VHF 20 mV, in the ranges of KB 200 mV and in LW, MW 150 mV. Selectivity in the ranges of DV, SV, KV at a detuning of ± 10 kHz - 34 dB. The band of reproducible sound frequencies in FM is 100 ... 7000 Hz, AM - 100 ... 4000 Hz, when playing records 100 ... 7000 Hz. The power consumed from the network at the reception is 55, when the EDA is 65 W. EPU - universal: 33, 45 and 78 rpm with semi-automatic switching on and automatic switching off. The AU consists of 2 wide-band 2GD-28 loudspeakers and 2 HF 1GD-28 loudspeakers. Dimensions of the radiogram 580x405x305 mm, weight 18 kg.