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The television receiver of the black-and-white image "Wave 23TB-410D" from I quarter of 1999 produced JSC "Penza Radio Works". The TV was produced in three versions with kinescopes 23, 31 and 34 centimeters diagonally, which was reflected in the name, for example, "Wave 31TB-410D" and "Wave 34TB-410D". By design, electrical circuit and design, in addition to size and weight - TV sets are the same. Any of the TVs works in the MV and UHF range. Sensitivity in the MV range of 20 mV, DMV 30 mV. Resolution 350 lines. The nominal output power of the low frequency channel is 0.5 watts. The range of reproduced frequencies is 250 ... 10000 Hz. The plant produced simultaneously the TV "Wave 23TB-411D" also with three types of picture tubes. These televisions had a remote control of all functions.