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Henri de France
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Henri de France

French engineer
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Learn about this topic in these articles:

  • colour television picture tube
    television
    / Colour television

    …line) system, and in France Henri de France developed SECAM (système électronique couleur avec mémoire). Both were basically the NTSC system, with some subtle modifications. By 1970, therefore, North America and Japan were using NTSC; France, its former dependencies, and the countries of the Soviet Union were using SECAM; and…

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    …line) system, and in France Henri de France developed SECAM (système électronique couleur avec mémoire). Both were basically the NTSC system, with some subtle modifications. By 1970, therefore, North America and Japan were using NTSC; France, its former dependencies, and the countries of the Soviet Union were using SECAM; and…

    Read More