A color television receiver picks up television signals with its receiving antenna. The signals travel to the tuner, which selects the desired station. Electronic circuits within the TV set separate the television signal into audio and video signals. The set <I>amplifies</I> the audio signal and changes it into sound. A decoder changes the video signals into primary color signals. Three electron guns in the picture tube--one for each primary color--scan the screen. The screen is covered with tiny phosphor dots of red, blue, and green. When struck by a beam, the colored dots glow and form the color picture.
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World Book diagram by Mas Nakagawa</P>
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