Portable radio `` Russia-303 ''.

Portable radio receivers and radios on p / p.DomesticSince 1974, the portable radio receiver "Russia-303" has been produced by the Chelyabinsk PO "Flight". Portable radio receiver of the 3rd class `` Russia-303 '' is assembled on 8 transistors and 2 diodes. It is designed to receive radio stations with AM modulation, in the LW and SV bands on the internal magnetic antenna and in the KB sub-bands, on the telescopic one. Frequency ranges: DV - 150 ... 408 kHz, SV - 525 ... 1605 kHz, KV-1 - 9.5 ... 12.1 MHz, KV-2 - 3.95 ... 7.3 MHz ... The IF is 465 kHz. Sensitivity in the range of DV - 1.5 mV / m, SV - 0.7 mV / m, KB - 100 μV. Selectivity on the adjacent channel in LW and MW - 46 dB. Selectivity for the mirror channel in the range of LW - 26 dB, MW - 30 dB, KB - 14 dB. AGC action: when the input signal changes by 26 dB, the output voltage changes by 6 dB. Rated output power 100 mW. The frequency range is 300 ... 3550 Hz. Power supply from 4 elements 316. Dimensions of the model 215х125х47 mm. Weight 1 kg. Since 1987, the Russia-303 receiver has been referred to as the Russia RP-303. In terms of parameters, it is analogous to the described receiver, and the design is similar to the lilac receiver. However, to increase the range of items, the production of the Russia-303 model was continued. During the production process, all elements of the radio receiver, such as a loudspeaker, piezofilter and resistors and capacitors, were replaced with modern ones.