Portable transistor radio receiver "Sokol-307".
Portable radio receivers and radios on p / p.DomesticSince 1973, the Sokol-307 portable transistor radio has been produced by the Temp Moscow Radio Plant. The Sokol-307 portable transistor radio receiver is assembled on 9 transistors and 7 semiconductor diodes. The radio receiver is designed to receive radio stations in the standard broadcasting ranges DV, SV and in the KV, KV-1 ranges - 16 ... 25 m (18 ... 11.2 MHz) and KV-2 - 31 ... 49 m (10. ..6.1 MHz). In the LW and MW ranges, reception is carried out on an internal magnetic antenna, in the HF ranges, on a retractable telescopic. Receiver sensitivity in the range of DV - 1.3 mV / m, SV - 0.7 mV / m, KV - 130 μV. Adjacent channel selectivity - 40 dB. Selectivity for mirror channels in the ranges: DV - 36 dB, MW - 30 dB, KV - 16 dB. The band of reproducible sound frequencies is 300 ... 3500 Hz. The average sound pressure in the operating frequency band is not less than 0.25 Pa. The rated output power of the amplifier is 300 mW. Maximum 700 mW. The model is powered by 6 A-343 cells with a total voltage of 9 V. The receiver remains operational when the battery voltage drops to 3.5 V. The dimensions of the radio receiver are 240x160x60 mm, the weight with batteries is 1.2 kg.