Black-and-white television receiver `` Signal ''.
Black and white televisionsDomesticSince 1964, the Signal TV has been produced by the Kozitsky Leningrad Plant and the Radiopribor Leningrad Plant. The Signal TV (ZK-38) contains 20 radio tubes, 15 diodes and a 43LK9B kinescope with a beam deflection angle of 110 °. The use of this picture tube made it possible to reduce the depth of the TV in comparison with similar models by 30%. The size of the visible part of the image on the screen is 270x360 mm. Sensitivity 100 μV. AGC, inertial synchronization with AFC and F line autogenerator provide the TV with confident reception of image and sound on an external antenna at a distance of up to 70 km from the TV center. In the schematic of the scanning unit, image size stabilization is applied when the mains voltage changes and when parts are warmed up. In order to remove image distortions, a sharpness correction knob is brought out. The acoustic system, consisting of two loudspeakers 1GD-9, which are located in the front in the lower part with an input power of 1 W and a frequency range of 100 ... 7000 Hz, provides good sound quality in a medium-sized room, and tone controls for low and high frequencies allow you to select desired tone. There are headphone jacks that can be used to connect a tape recorder for recording. Wooden case, polished with imitation of precious woods. All main control knobs are located on the front panel, auxiliary knobs are located on the left side in the vertical row. The TV is assembled on a vertical chassis using printed wiring. The TV was produced in two versions of the case, with straight and rounded corners (model ZK-39). The dimensions of the device are 610x500x400 mm. Weight 32.5 kg.
