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Title: "Black-level clamp unit" - an important unit of the vision s [Go to resource]
Description: "Black-level clamp unit" - an important unit of the vision signal control apparatus in the first high-definition television transmitter at Alexandra Palace in 1936 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Identifier: 1962-274 Go to resource More Like this...
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