Nowadays, it is difficult to find an apartment that does not have a TV. Modern television offers many TV channels, it is possible to choose films and TV shows for every taste. And the era of television began more than a hundred years ago with an experiment conducted in the laboratory of the St. Petersburg Technological University.
The first experience of television transmission was carried out on May 22, 1911 by Boris Lvovich Rosing, he managed to transfer the picture to the screen of the kinescope invented by him. But another 17 years passed before Rosing's student, a talented Russian engineer Vladimir Zvorykin, who was forced to go abroad, created the first television with mechanical scanning in the USA. The production of televisions with a cathode-ray tube was started in the United States only in 1939.
The Soviet Union in the field of creating television technology did not lag behind other countries. Already in 1932, the industrial production of the B-2 TV set, developed by engineer A. Ya. Breitbart. By modern standards, this was a rather primitive optical-mechanical device with a 3 x 4 cm screen. The first Soviet TV was not even an independent device, but was a prefix to a radio receiver.
The production of the first electronic TV sets in the USSR began in 1938 - that is, a year earlier than in the United States. The TV was called "ATP-1", nine electronic tubes were used in the design. At that time, its design turned out to be very successful, the image quality was very high. The designers also developed a more advanced model, but the war prevented its release.
After the war, a new model of the KVN-49 TV was developed and launched in 1949, which can be considered the first mass Soviet TV. The screen size was 10.5 x 14 cm, the TV could receive three channels. To increase the size of the image, a special hollow plastic lens filled with water was used. It was placed in front of the screen, it could be moved back and forth, achieving a high-quality image. In total, about two million of these television sets were produced, for many Soviet people it was KVN-49 that became the first television set in their life.
Since the 50s, many TV models have been produced in the USSR, but all of them were black and white. Soviet designers were actively working on the transition to color television, and in 1967 the first domestic color televisions "Record-101", "Raduga-403" and "Rubin-401" went on sale. A little later, large batches of 700-series TVs began to be produced, which became very common. The first models had a screen with a diagonal of 59 cm, a little later the screen size increased to 61 cm.
It was these color televisions, along with the black-and-white models that continued to be produced, that made up the main park of television equipment of the 70s.
