AU280770B2 - Improvements in or relating to devices forthe display of television images ina brightly illuminated ambience, comprising a cathode-ray tube having a dark-coloured viewing screen
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Improvements in or relating to devices forthe display of television images ina brightly illuminated ambience, comprising a cathode-ray tube having a dark-coloured viewing screen
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Koninklijke Philips NV
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Philips Gloeilampenfabrieken NV
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Application filed by Philips Gloeilampenfabrieken NVfiledCriticalPhilips Gloeilampenfabrieken NV
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Publication of AU280770B2publicationCriticalpatent/AU280770B2/en
Publication of AU5672065ApublicationCriticalpatent/AU5672065A/en
AU56720/65A1964-03-261965-03-24Improvements in or relating to devices forthe display of television images ina brightly illuminated ambience, comprising a cathode-ray tube having a dark-coloured viewing screen
ExpiredAU280770B2
(en)
Improvements in or relating to devices forthe display of television images ina brightly illuminated ambience, comprising a cathode-ray tube having a dark-coloured viewing screen
Improvements in or relating to devices forthe display of television images ina brightly illuminated ambience, comprising a cathode-ray tube having a dark-coloured viewing screen
Circuit arrangement for use ina television receiver for maintaining a constant background brightness of the television picture produced by the display tube
Improvements in or relating to circuit arrangements for use ina television receiver tokeep constant the contrast andthe brightness ofthe television picture reproduced by means ofa display tube