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The color killer is an electronic stage in color TV receiver sets which acts as a cutting circuit to cut off the color amplifiers when the TV receives a monochrome signal.〔(thefreedictionary.com )〕 == Monochromatic transmission == When a receiver is tuned to a monochrome transmission, the displayed scene should have no color components. However, there are two factors which result in color display even during monochrome transmission: * a high frequency component of the luminance signal * a high frequency of external noise When the frequencies of these signals equals the frequency of the color subcarrier wave, they may create an irritating color dot pattern like ''confetti'', which interferes with the monochrome picture. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Color killer」の詳細全文を読む スポンサード リンク
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