The television receiver of the black and white image "Spring-305" has been produced by the Dnepropetrovsk Radio Plant since the 1st quarter of 1975.
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The unified TV of the 3rd class "Spring-305" (ULT-50-III-2) does not differ from the TV set "Spring-304" in design and electrical circuit.
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There is a slight difference in appearance.
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The TV was produced in tabletop and floor designs.
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CRT type 50LK1B.
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Wooden case with various options for finishing the body and front panel.
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The TV works in any of the 12 channels of the MV range.
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Sensitivity 150 μV.
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The rotary, vertical chassis contains printed circuit boards with nodes and circuit elements.
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The main control knobs are brought out to the front panel, the rest to the upper part of the rear wall.
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Here are the knobs for adjusting the local oscillator, PTK, volume, mains switch, contrast and brightness.
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On the back wall there are line frequency controls, size and frame rate controls, a mains voltage switch, antenna sockets.
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The TV provides image size stabilization, connection of a tape recorder to record sound and headphones You can listen to sound on the headphones when the speaker is turned off.
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AGC creates a stable image.
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The influence of interference is minimized by AFC and F horizontal scan.
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The TV has 16 tubes and 15 diodes.
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The TV is powered by AC.
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The size of the visible image is 308x394 mm.
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Power consumption from the network is 160 W.
,86e6f450b8cc469628ba70bf2947b049
Dimensions of the TV 510x502x365 mm.
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Weight 26 kg.
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Since the 1st quarter of 1976, the plant has been producing the "Spring-306" TV, which does not differ in design from the one described, but the unification here is another 3ULPT-III, respectively, the electrical circuit of the new TV has some differences.
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