TV receiver of black and white image `` Sapphire 23TB-431D ''.

Black and white televisionsDomesticThe television receiver of the black-and-white image "Sapphire 23TB-431D" has been produced since the 1st quarter of 1995 by the Ryazan AO plant "Krasnoe Znamya". The TV was produced in two versions with a picture tube size on a diagonal of 23 and 31 centimeters, the second model was "Sapphire 31TB-431D". Televisions are the same in design, but differ in design. Both models work in the MV and UHF range. Sensitivity in the MW range is 40 µV, in the UHF - 70 µV. Rated output power 100 mW. Resolution of 350 lines. Dimensions of the first model 255x260x250 mm, the second 330x340x280 mm. TV weight, respectively, 6.5 and 8.7 kg. In 1995 the TV "Sapphire 24TB-431D" was produced experimentally on a non-standard picture tube.