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Color CRT displays in TV sets and computer monitors often have a built-in degaussing (demagnetizing) coil mounted around the perimeter of the CRT face. Upon power-up of the CRT display, the degaussing circuit produces a brief, alternating current through the coil which fades to zero over a few seconds, producing a decaying alternating magnetic ...
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Internal degaussing coils in CRTs are generally much weaker than external degaussing coils, since a better degaussing coil takes up more space. A degauss circuit induces an oscillating magnetic field with a decreasing amplitude which leaves the shadow mask with a reduced residual magnetization. A degaussing in progress
Because so many analog color TVs were produced from the 1960s to the early 2000s, economies of scale drove down the cost of colorburst crystals, so they were often used in various other applications, such as oscillators for microprocessors or for amateur radio: 3.5795 MHz has since become a common QRP calling frequency in the 80-meter band, and ...
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Color Television Inc. was an American research and development firm founded in 1947 and devoted to creating a color television system to be approved by the Federal Communications Commission as the U.S. color broadcasting standard. Its system was one of three considered in a series of FCC hearings from September 1949 to May 1950.
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