why old TVs used to imprint the image of whatever show played on them on the screen permanently? 199 viewsJanuary 3, 2024 Question91.39K February 14, 2022 0 Comments why old TVs used to imprint the image of whatever show played on them on the screen permanently? In: 2 1 Answer ActiveNewestOldest Anonymous Posted February 14, 2022 0 Comments Old TVs are made of a cathode Ray tube. The image was drawn by a beam of electrons striking a phosphorescent powder on the front of the screen. If the same image was displayed too long, the electron beam could “burn” a pattern into that powder leaving a “burn in image”. Register or Login
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