Black-and-white television receiver `` Screen ''.
Black and white televisionsDomesticThe television receiver of the black-and-white image "Ekran" was developed in 1954. Experimental TV `` Screen '' was developed by designers N. Veselov, Yu. Zinoviev, A. Vasiliev and A. Ratmansky at the beginning of 1954 in Moscow. The TV set is designed to receive only one program and broadcast radio stations in the VHF-FM band. Image channel sensitivity 600 µV. Sharpness of the image 400 lines. The output power of the sound channel is 0.5 W, the range of reproducible sound frequencies is 100 ... 4000 Hz. Power consumption 170 watts. Dimensions of the Screen TV - 560x360x320 mm, weight 24 kg. The TV has 10 lamps and an electrostatic picture tube with a diameter of 180 mm. The main control sticks are in the front, the auxiliary ones in the back. There is also a mains switch, fuse, antenna socket. The TV set "Ekran" did not go into mass production due to imperfection and obsolescence of its design and scheme.