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The television receiver of the black-and-white image "Sapphire-402" from 1983 produced the Ryazan Red Banner software. TV "Sapphire-402" (4UPIT-23) operates in the MW range. The choice of programs - push-button, you can choose one of 6 pre-configured programs. Sensitivity 30 µV. Rated output power 0.3 watts. Frequency range 400 ... 3500 Hz. Powered by mains or battery. Power consumption of 25 and 17 watts. Dimensions of the TV 325h225h225 mm. Weight 6.5 kg. Price 220 rubles. The design of the TV reminds the design of the TV "Youth-403".