Portable transistor radio receiver "Quartz-403".

Portable radio receivers and radios on p / p.DomesticSince 1972, the portable transistor radio receiver "Quartz-403" has been producing the Kyshtym radio plant. The model is assembled on the basis of the Sokol-403 radio receiver and is designed to receive radio stations in the DV and SV bands. The radio is received via an internal magnetic or external antenna. The sensitivity when receiving on the internal antenna and the output power on the detector is 5 mW and the signal-to-noise ratio of 20 dB is 3.0 mV / m in the LW range, 1.0 mV / m in the MW range. Selectivity on the adjacent channel is 20 dB in the LW range and 16 dB in the MW, the attenuation of the image channel in both ranges is about 20 dB. The AGC system provides a change in the signal voltage at the output by 10 dB, with a change at the input by 26 dB. Volume control range 40 dB. The working range of sound frequencies is 450 ... 3150 Hz, the average sound pressure is 0.15 N / m2, the nominal output power is 100 mW. Powered by Krona battery or 7D-0.1 battery. The operability is maintained when the voltage drops to 5.6 V. The dimensions of the radio receiver are 170x100x40 mm, the weight is 480 g (without battery).