Television receiver of black-and-white image `` Youth ''.
Black and white televisionsDomesticThe television receiver of the black-and-white image "Youth" has been produced by the Moscow Radio Engineering Plant since the fall of 1964. The small-sized portable TV `` Yunost '' (LPT-23) was produced in a small experimental batch since November 1964, but mass production was launched only from March 1965. Many do not know that the prototype of the model was an experimental TV with the same name, which was created back in 1959 on the basis of the case and chassis of the also experimental Volna TV. It was almost completely transistorized, except for the line scan unit, a device on a 43LK2B kinescope powered from a network or 12 V. batteries. The TV was not put into series due to the imperfection of semiconductor devices of those years. TV `` Youth '' - 1964 release is also assembled almost entirely assembled on a p / p. It is economical and operates on the mains and battery (special or car). To enlarge the screen, a special lens could be installed in front of the TV. The TV has 3 lamps (1C20B in line scan) and 49 p / p. Telescopic antenna, external connection is also possible. Number of channels 12. Kinescope 23LK9B. Image size 140x190 mm. Sensitivity for 1 ... 5 channels 150 μV, 6 ... 12 - 250 μV. The number of gradations of brightness 7. The clarity is 450 lines. Dimensions without power supply unit - 270x205x205 mm, with power supply unit - 270x205x270 mm. Power consumption from the network is 27 W, the battery is 13 W. Weight with PSU - 7 kg, without - 4.8 kg. The TV was produced in several options for external design and colors. On the left in the photo is a view of an experimental TV set from the beginning of production; this is an exhibit of the Polytechnic Museum of Moscow. Other photos of Oleg Viktorovich Semyonov, Moscow. The last advertising brochure is one of the variants of the Yunost TV developed in 1963. Its parameters were below serial TV.
