Portable radio `` Atmosphere-2M ''.
Portable radio receivers and radios on p / p.DomesticSince 1962, the Atmosfera-2M portable radio has been produced by the Voronezh and Grozny radio factories. "Atmosphere-2M" - modernization of the "Atmosphere-2" model. The circuit of the RF part was left unchanged, and the circuit of the LF amplifier was changed. It uses an output transformer to match a new low-impedance loudspeaker type 0.5GD-10, a matching transformer has been changed, and transistors in the low-frequency stages have been replaced. The receiver parameters remain the same. Ranges DV and SV. Sensitivity to SV 1.5 mV / m, DV 3.0 mV / m. Adjacent channel selectivity 26 dB. Rated output power 150 mW. The loudspeaker reproduces the audio frequency band of 300 ... 3000 Hz. The receiver is powered by 2 KBS-L-0.5 batteries. Current consumption at rated power 45 mA, at rest 12 mA. The body and dimensions are the same as for the Atmosphere-2 receiver. Weight 1.5 kg. The radio receiver of the Grozny radio plant had differences in the arrangement of the elements and the printed wiring of the bass amplifier (14th photo).
