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Most of us still remember the old CRT TV that our parents or grandparents had on the TV cabinet years ago. You know which ones I'm talking about, those old televisions with small screens and lamps inside them. If the TV no longer worked, most probably the lamp needed replacing. How easy was fixing a television back then.
With the modern technologies that are available today, there are many people wondering what happened to the old tube TV, are they still functional, can you still buy them and are they still manufactured?
The question in a nutshell is yes, they are still manufactured. They are used a lot in poorer countries, in developing regions where saving money is crucial and where buying a CRT television is the only way for a first time buyer to have access to the various programs. Manufacturers are well aware of this fact and they melt down the glass from the old tube which then are used to make new pieces ready to be sent to these needing countries. This not only helps the people to get some kind of viewing experience, but it is also a good environmentally friendly option by reusing the materials instead of dumping them somewhere. Eco-friendly alternative at its best.
Of course CRT TVs are way cheaper than the modern flat screen televisions and here is in a nutshell how the principle behind them works. The vacuum tube has an electron gun that is pointed at a phosphor coated screen. This electron gun basically fires its electrons at the CRT tube. This in turn enables the phosphor to heat up and bring the colors on the screen to life in order to create the image that the person can watch.
So if you like a happy ending to a story, you can be rest assured that while there are people out there who can't afford LCD TVs or plasma screens, they can much easier buy a CRT tube that will allow them to keep up with what is going on in the world and watch the latest movies on their - albeit smaller - screen.
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Filed under: Surround Sound Speaker Systems
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