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The television receiver of the black-and-white image "Sura 31TB-403D" has produced the OJSC "Penza Radio Works" since 1998. TV "Sura 31TB-403D" is designed to receive television programs in the MV and UHF bands. Up to 51 television programs can be recorded in the memory of the microprocessor. The kinescope is of the type 31LK4B. Sensitivity in the MV range of 20 μV, in the UHF range of 30 μV. The frequency range of 240 ... 8000 Hz. Rated output power 0.6 watts. Powered by mains or battery. Dimensions of TV 298x320x362 mm. Weight 7 kg. At the same time, the plant also produced the Sura 31TB-404D TV, which was only bundled with a wireless remote control for all functions.