Portable radio `` Russia-304 ''.
Portable radio receivers and radios on p / p.DomesticSince 1979, the portable radio receiver "Russia-304" has been producing the Chelyabinsk Radio Plant. The release of the receiver is timed to coincide with the "Olympics-80". The scheme and design of the receiver does not differ from the Russia-301 and Russia-303 receivers. "Russia-304" is a portable superheterodyne radio receiver of the 3rd class, assembled on 8 transistors and 2 diodes and is designed to receive radio stations from AM in the DV and SV bands to a built-in magnetic antenna, and in KV-1 and KV-2 to a telescopic antenna. Range of received frequencies: DV 150 ... 405 kHz; CB 525 ... 1605 kHz; KV-1 9.5 ... 12.1 MHz, KV-2 3.95 ... 7.3 MHz. IF - 465 kHz. Maximum sensitivity at an output power of 5 mW: at DV 500 μV / m; CB 200 μV / m; KB 50 μV. Real sensitivity: at LW 1.5 mV / m; SV 0.7 mV / m; KB 100 μV. Selectivity on the adjacent channel 46 dB, on the mirror: on DV 36 dB; CB 30 dB; KB 14 dB. Rated output power 100 mW, maximum 150 mW. The band of reproducible sound frequencies is 315 ... 3550 Hz. Average sound pressure 0.25 Pa. Power supply - 4 elements A-316. Quiescent current 10 mA. The dimensions of the radio receiver are 215 x 125 x 47 mm. Weight 1 kg.
