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Radiola network lamp "Ural-57" from the beginning of 1957 was produced at the Sarapulsky plant them. Ordzhonikidze. It consists of 6-tube superheterodyne receiver and electric player for ordinary and long-playing records. Since 1957, a full range of radio components, components and enclosures were also produced into a wide sale, from which, having basic knowledge of radio and electrical engineering, it was possible to assemble a radiolamine similar to the factory one. Radiola is designed to work in 4 ranges: LW and MW, 2 subbands KV-1 76 ... 40 m, KV-2 31 ... 25 m. Sensitivity in LW and MW 150 µV, KV 250 µV. Pickup sensitivity 180 mV. The adjacent channel selectivity at 10 kHz detuning in the LW, LW 26 db. Selectivity on the mirror channel in the range of DV 36 dB, CB 30 dB, in the ranges of KB 12 dB. AGC provides a change in voltage at the output by 8 dB when changing the input voltage by 26 dB. The background level at the output -37 dB. Adjusting the tone on the treble provides a change in frequency response of 6 dB. Irregularity of the frequency response of the entire path of the receiver sound pressure in the frequency range 100 ... 4000 Hz -12 dB. Nonlinear distortions in sound pressure at nominal output power at frequencies below 200 Hz, not more than 10%, at frequencies above 200 Hz, not more than 7%. Rated output power 1.5 W, maximum 4. Electric motor EPU asynchronous DAG. ZPU-1 piezoelectric pickup. The speaker consists of two 2GD-zl loudspeakers. Power consumption when receiving 80 watts, when playing records 110 watts. Power supply from 110, 127 or 220 volts. Dimensions radioli 549h393h310 mm, weight 24 kg. Radiola had a different range and color combinations of the hull. Let out a radiographer until 1963.