How It Works

TV Signals Roundup

How Television Works Television has been around long enough to seem entirely ordinary, but the box that brings TV shows into your home is an amazing device. What kinds of signals are being transmitted? How is the picture formed? Where does the color come from? Find out what’s going on inside a TV set. Learn […]

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How SED-TV Works

Creating the Picture The heart of an SED-TV is the millions of miniature CRTs, called surface-conduction electron emitters (SCEs). An SCE is microscopic, and it consists of a layer of carbon with a gap down the center. One half of the carbon layer connects to a negative electrode, and the other connects to a positive

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TV Buying Guide

What’s Your Type? The television is one of the most significant inventions of the 20th century. For the whole picture, read How Television Works. In the past few years, there have been tremendous leaps in TV technology. Twenty years ago, TV shoppers had very few choices. These days, several TV technologies are competing with one

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How Flexplay DVDs Work

The Flexplay Twist The secret to Flexplay discs is an extra layer added to a standard DVD structure. This specialized layer includes a chemical compound that readily combines with oxygen in the atmosphere to form a new chemical compound. While the original chemical compound is transparent, the new chemical compound is opaque. When the layer

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