Portable transistor radio receiver "Sokol-405".
Portable radio receivers and radios on p / p.DomesticSince 1977, the Sokol-405 portable transistor radio receiver has been produced by the Moscow PO Temp. The Sokol-405 radio receiver is assembled on 9 transistors and three diodes. It is designed to be received with a magnetic or telescopic antenna. Ranges CB 525 ... 1605 kHz and KB 5.8 ... 12.1 MHz. IF 465 kHz. Real sensitivity in the range of MW 0.7 mV / m, KB 150 μV. Adjacent channel selectivity 30 dB. Selectivity in the mirror channel in the range of 30 dB CB, KB 12 dB. AGC action: when the input signal changes 26 dB, the voltage change at the receiver output is no more than 6 dB. Rated output power 150, maximum 300 mW. The band of reproducible sound frequencies is 315 ... 3550 Hz. Average sound pressure 0.25 Pa. Power supply 6 elements 316. The current consumed by the receiver in the absence of a signal is 13 mA. Efficiency is ensured when the supply voltage drops to 5 V. Dimensions of the model are 200x140x58 mm. Weight 0.8 kg. The receiver is developed on the basis of the Sokol-404 model and differs from it in ranges, design, external design and circuit changes. The body is made of impact-resistant polystyrene and finished with metal overlays. The scale and controls are located on the front panel, and the range switch and jacks for the external antenna and TM-4 telephone are on the back and side walls of the case. The controls are labeled and labeled. The first issues of Sokol-405 receivers were designed both on the left image and in the reference book.
