Combined radio and television installation "Belarus-5".
Combined apparatus.The combined radio and television installation "Belarus-5" has been produced at the Minsk Radio Plant since the 4th quarter of 1959. Teleradiola "Belarus-5" consists of a television receiver, a radio receiver and a universal electric player. The TV operates on a 43LK2B kinescope with an image size of 360x270 mm and provides reception of television broadcasts on any of the 12 channels. The HF part of the TV is assembled according to a superheterodyne single-channel scheme. The sensitivity of the TV is 100 μV. Clarity 500 lines. Synchronization is stable when the values of the television signal and the voltage in the network change. All switching is done with a rocker switch. When the receiver and the player are operating, the glow of the TV and picture tube lamps, as well as the anode-screen circuits, are turned off. When the receiver is operating in AM mode, the anode voltage in the VHF unit is turned off. The remote control supplied with the unit allows you to adjust the brightness of the image and the volume of the soundtrack at a distance of up to 5 meters. The radio receiver has five ranges: DV, SV, KV-2 5.5 ... 8.2 MHz, KV-1 8.0 ... 12.2 MHz and VHF-FM 64.5 ... 73 MHz. Receiver sensitivity for DV, SV, HF ranges - 150 μV, for VHF 30 μV. Selectivity on the adjacent channel on all bands (except VHF) 26 dB. On VHF 20 dB. Selectivity on the mirror channel in the ranges; DV 40 dB, SV 30 dB, HF 14 dB, VHF 20 dB. With the help of EPU, you can reproduce gramophone records from conventional and LP records. Since 1961, a three-speed EPU has been installed. Rated output power 1.5 W. Audio frequency band 80 ... 8000 Hz. Treble tone control is stepwise. The sound pressure developed by the 2GD-M3 and 1-GD9 loudspeakers is 4 bar. The rectifier is assembled on six diodes of the DG-Ts27 type according to the doubling scheme. The power consumed from the network when receiving television broadcasts is 180 W, when the receiver or player is operating 75 W. The chassis has a common frame on which a panel of deploying devices, a television receiver line, a key switch, a VHF unit and other small units are installed. At the front of the chassis is the radio dial through which the knobs for tuning, volume, and tone pass. The handles for controlling the TV go out to the right side wall of the case, on this wall the PTK unit and the 1-GD9 type loudspeaker are attached. Additional adjustment knobs are located on the back wall. The turntable is located at the top of the setup case. The front frame of the case with a picture tube mounted on it and a deflecting system is removable, which provides access to the TV chassis during repairs. For the same purpose, a panel with email. the turntable is made folding and fixed with a latch. The cutout in the bottom of the unit drawer allows for minor repairs in the basement of the chassis without removing the chassis from the case. The case of the TV-radio is trimmed with precious woods. External dimensions of the unit are 560x545x535 mm, weight 40 kg. The retail price of the Belarus-5 installation is 384 rubles 85 kopecks after the monetary reform of 1961.
