Since 1969, television receivers for b / w images "Chaika-201" and "Chaika-202" have been produced by the "Gorky Television Plant".
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The Chaika-201 TV set is assembled on the basis of a unified chassis of the ULPPT type of a 2nd class TV.
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The model uses a 59LK2B rectangular kinescope, covered with a decorative overlay.
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The TV was produced in a tabletop and floor design.
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Finished with valuable species (walnut or mahogany), the TV case measures 735 x 500 x 260 mm.
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The PTK knob is placed under the grill covering the loudspeakers, to the right of the grill are the control knobs;
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volume, bass tone with a loudspeaker switch when listening to sound on telephones, treble tone, contrast and brightness (from top to bottom).
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Under the handles are the buttons for the mains switch.
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There are two loudspeakers.
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The sensitivity from the antenna input is 50 μV.
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Clarity 450 lines horizontally, 500 lines vertically.
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The band of reproducible sound frequencies is 100 ... 10000 Hz.
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Audio channel output power - 1.5 W.
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Powered from a network 127/220 V. Power consumption 170 watts.
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The weight of the device is 36 kg.
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Together with this model, in order to expand the range of products, the plant produced the TV "Chaika-202", in addition to the design similar to that described.
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The Chaika-202 TV case is 40 mm shorter in front of the Chaika-201 TV case, since the control knobs on the Chaika-202 TV remained where they are located in the unified TVs of the 2nd
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class (on the right, at the top of the rear casing).
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On the front panel of the TV, under the grill, only the PTK handle and the network switch buttons are located.
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Since October 1971, televisions have been produced with a different frame sweep master oscillator circuit, where 1/2 6F5P lamp was used instead of the TX4B-T thyratron.
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In the KR generator, in comparison with ULT-47/59, the schemes for separating personnel sync pulses and powering the lamp anode have been changed.
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