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The automobile radio "AT-66" since 1966 serially produced the Murom radio plant. Designed for installation in the car GAZ-24 (Volga) and receiving stations in the range of long (150 ... 408 kHz), medium (520 ... 1605 kHz) waves and in the VHF (65.8 ... 73 MHz) range . The sensitivity on the DV - 150 mV, SV - 50 mV, VHF - 5 mV. The selectivity on the adjacent channel is 34 dB, on the mirror in DV - 40, CB - 36, VHF - 30 dB. AGC in the ranges of DV, SV provides a change in output voltage by 8 dB, when the input signal changes by 40 dB. Rated output power 5 watts. Irregularity of the frequency response in the band 80 ... 8000 Hz does not exceed 3 dB. Nonlinear distortion factor of 5%. The limits of tone control from 6 to -10 dB. Powered by a battery voltage of 12.8 volts. The power consumption of the receiver is 18 watts. The dimensions of the receiver are 247x115x270 mm, its mass is 4 kg. Later, radios were produced with indices "C" Soviet and "E" European export version. There were radio sets with the "T" index of the tropical version, designed to work in hot climates.