Network tube radio receiver `` Leningrad ''.

Tube radios.DomesticThe network tube radio receiver "Leningrad" since 1946 has been produced by the Leningrad plant named after V.I. Kozitsky. "Leningrad" is a twelve-lamp superheterodyne radio receiver of the first class, intended for receiving radio stations and playing back recordings from an external EPU. Feature - the presence of stretched HF bands and push-button tuning for four waves. Since 1948, the receiver has been modernized and produced in 2 versions, with fixed and normal settings, on 11 tubes with a modified circuit and HF bands extended to 16 meters. Technical parameters of the 1st option: Frequency ranges with smooth tuning: DV - 150 ... 410 KHz, SV - 560 ... 1500 KHz, KV-I - 4.3 ... 7.5 MHz, KV-II - 9.495 ... 9.73 MHz, KV-III - 11.725 ... 12.005 MHz, KV-IV - 15.115 ... 15.46 MHz. Fixed setting: 1st button is 150 ... 225 KHz (2000 ... 1333 m), 2nd button is 225 ... 340 KHz (1333 ... 882 m), 3rd button is 580. .870 KHz (517 ... 345 m), 4th button 900 ... 1350 KHz (333 ... 222 m). The IF is 460 KHz. Sensitivity: DV, SV - 180 μV, KV - 80 μV, with a push-button setting 200 μV. Adjacent channel selectivity 30 dB. Selectivity on the mirror channel for DV and MW - 50 dB. The nominal output power of the amplifier is 4 W, the maximum is 8 W. The range of reproducible sound frequencies is 50..5000 Hz, when playing a gramophone 50..7000 Hz. Power supply from AC 110, 127 or 220 V. Power consumption 120 W.