Black-and-white television receiver `` Rubin ''.
Black and white televisionsDomesticThe television receiver for b / w images "Rubin" has been produced by the Moscow Television Plant since 1956. The Rubin TV operates in any of five channels, can receive local VHF radio stations, and has a pickup input. The TV constructively consists of two chassis; receiving channels with a rectifier and a sweep unit with synchronization. 2 chassis and picture tube with PTP are mounted in a case and are electrically connected. Two loudspeakers are located at the bottom of the case at the front. Polished wooden case with dimensions 485x490x420 mm. TV weight 30.5 kg. Kinescope 43LK2B (3B) with electrostatic beam focusing and ion trap. There are six main regulators. Four of them are doubled and brought to the front panel. Auxiliary handles are located at the back. The device works with indoor and outdoor antennas. The back wall of the case is removable and has cutouts for access to the adjustment knobs, power switch and sockets. The neck of the tube is closed with a cap attached to the back wall. With a change in the input signal level, AGC is triggered. With distant and unstable reception, the automatic line frequency control (AFC) circuit is turned on. The sensitivity of the TV is 200 μV. The output power of the amplifier of the sound channel is 2 W. The range of reproducible sound frequencies is 80 ... 8000 Hz. Power consumption 150 W, while receiving FM - 70 W. At the end of 1956, with the same design, the TV was upgraded to the Rubin-A model, and at the beginning of 1957 to Rubin-2. An adjustment was made to the denominations of the scheme and its minor changes. The parameters of the upgraded models, in addition to increasing the sensitivity to 100 μV, and their external design are the same. The first releases of TVs `` Rubin '' had dimensions of 500x495x430 mm, and a weight of 38.5 kg. Then the dimensions and weight of the TV were reduced due to the thinner wood of the case. To increase the assortment of TVs produced, since 1956 the plant has simultaneously produced the Topaz TV, which in its scheme, design and design is practically similar to the Rubin model.
