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Television receiver b / w images "Sapphire-412 / D" from I-kv 1986 released Ryazan plant "Red Flag". Small-sized unified semiconductor-integrated TV "Sapphire-412" is designed to work in the MW waveband, and the TV with the index "D" in the MW and UHF. The TV has a number of automatic adjustments that provide high-quality image. The TV uses an explosion-proof 23LK13B kinescope with a beam deflection angle of 90 °, a selector of channels for the meter band SK-M-20. In TV without an index, you can set the selector SK-D-22 for receiving television programs and in the UHF range. You can listen to the sound of the headphones. The device has a built-in telescopic antenna. Universal power supply: AC power and DC power supply. The TV case is made of high impact polystyrene in various color options. Key Features: Image size 140x183 mm. Sensitivity 55 µV. The frequency range of sound is 400 ... 3550 Hz. Nominal sound output channel power 0.1 watts. Power supply from an electric network or a source of a direct current, voltage 12V. Power consumption from the power supply 30 W, DC source 15 W. TV dimensions are 350x246x225 mm. Weight 5.5 kg.