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The radio car "A-12" since 1959 produced the Murom radio plant. It is a six-lamp dual-band superheterodyne, powered by a 12.8 V battery with a grounded negative. Designed for the car GAZ-21 where the level of interference of the ignition system is reduced. Ranges DV and ST. The sensitivity on the CB 100, DV 250 µV. 28 dB selectivity. When the input signal voltage changes by 40 dB, thanks to the AGC system, the output voltage changes by 8 dB. IF 465 kHz. Output power 2 watts. The bandwidth of the entire path is 100 ... 5000 Hz. Power consumption 42 watts. The receiver can be tuned to any radio station and this setting is fixed by a mechanical device. In total, it is possible to record 5 stations: 2 of them are in the DV range and 3 in the CB. In the future, tuning to the fixed stations and switching the ranges is done by pressing the corresponding button. The set includes power supply units VP-9 or BP-12 with the help of which the battery voltage is converted to the high voltage required to power the radio tubes. In the VP-9 block, the conversion is performed by a mechanical vibrator, and the power supply unit BP-12 is built on transistors. The receiver consists of 3 parts: the receiver, power supply and loudspeaker mounted on the reflective board. Since 1961, the plant has produced a radio receiver type "A-12A" having similar characteristics, electrical circuit and design, but differing in the use of already printed wiring.