Black-and-white television receiver "Foton-234".
Black and white televisionsDomesticSince 1986, the television receiver of the black-and-white image "Foton-234" has been producing the Simferopol TV Plant named after the 50th anniversary of the USSR. The unified semiconductor-integrated black-and-white TV "Foton-234", with a screen diagonal of 61 cm, is made on integrated microcircuits and transistors, with the use of SAW filters. The TV operates in the MW range, and the models with the `` D '' index also operate in the UHF range. The TV is equipped with a sensor device for selecting 6 preset programs, there are APCG, AGC, headphone and tape recorder jacks, speaker shutdown. Thanks to the pulsed power supply unit and new elements, the TVs have a small weight of 25 kg and a reduced power consumption of 40 watts. The sensitivity of the model is 55 μV. Image size 362x482 mm. Resolution in the center horizontal 600, vertical 550 lines. The maximum brightness of the picture tube is 150 cd / m2. The maximum output power of the audio channel is 2.5 W. The range of reproducible sound frequencies is 100 ... 12500 Hz. Deviation of the mains voltage from the norm 164 ... 260 volts. The price of a TV without the `` D '' index is 330 rubles. Since 1988, the plant has been producing a new TV set "Foton-234-1" in design and design, with the exception of minor changes in its circuit (IF and LF) similar to that described.
