Installation "UGB" and the prefix "GB-8".

Tape recorders and radio tape recorders.Installations "UGB" and "GB-8" were produced from the beginning of 1941 at the Voronezh radio plant and at the Kolomna gramophone plant, respectively. In 1931, the engineer B.P. Skvortsov created a new recording apparatus for that time "Talking Paper". After amplification, the sound from the microphone was fed to an electromagnet that vibrated a pen with black ink, under which a paper tape was stretched. After that, the tape was passed through a photocell, directing light from a powerful lamp onto the paper. The recorded fluctuations caused changes in the voltage at the output of the photocell, amplified and fed to a loudspeaker, which reproduced the recorded. Phonograms were easy to copy by printing method in any printing house and without the slightest loss of their sound quality. The first experimental devices of the "UGB" installation were produced back in 1941, but a series of 500 installations was produced only at the end of 1944. The UGB installation was a combination of a 6N-1 radio receiver with a powerful push-pull final stage of a low-frequency amplifier and an external loudspeaker and the GB installation itself. The prefix "GB-8" was produced before July 1941 by the Kolomna gramophone plant in an amount of about 500 copies. It could be used with any radio receiver. This ended the release of "GB-8" in Kolomna, and in Voronezh I will repeat the release at the end of 1944. Since 1945, the factories have no longer produced installations, since magnetic recording has developed throughout the world. It was pointless to go against it, although ideologically the "Talking Paper" apparatus had an advantage, unlike tape recorders, its owner would have to listen to what was sold in stores, the home version of the "Talking Paper" apparatus worked only for reproduction, and since the technology of the apparatus was domestic , one could not be afraid of the penetration of Western ideology, with the records brought from abroad. Now the surviving "Talking Paper" devices and recordings to them can be seen in several museums, for example, in the PM mountains. Moscow.