Black-and-white television receiver `` Lviv-4 ''.
Black and white televisionsDomesticThe television receiver of the black-and-white image "Lvov-4" has been produced since August 15, 1961 by the Lviv Television Plant. The network tube TV `` Lviv-4 '' is designed to receive television programs in any of the 12 television channels. It has a 43LK6B wide-angle kinescope with an electron beam deflection angle of 110 °, which made it possible to significantly reduce the dimensions of the case, and its aluminized screen significantly improved the image quality. Instead of a three-stage IF amplifier, a four-stage amplifier was used, the circuit of the output stages of the horizontal and vertical scan has changed. The model has 16 tubes and 16 diodes. Image size 360x270 mm. Case dimensions 590x355x220 mm. The progressive TV Lviv-4 was produced in a limited experimental series and was discontinued due to technical problems. The design of the Lvov-4 TVs and the Verkhovyna-A TV, which has been produced since 1962, is practically the same. The first TV sets "Lviv-4" were called "Trembita". In total, about 2000 TVs of both names were produced.