Tit Vacuum
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Vacuum — шведская синтипоп-группа, в настоящее время состоящая из Маттиаса Линдблума и Андерса Вольбека. Они познакомились в 1996 году, тогда же группа записала свой первый альбом. Группа работает в собственной студии «Home», расположенной в центральной части Стокгольма, и часто гастролируют по всему миру.
Как композиторы, Маттиас Линдблум и Андерс Вольбек написали хиты для многих известных групп и артистов, к примеру: Monrose, Тарья Турунен, Рэйчел Стивенс, Гару и других.
ООО «АдвМьюзик» заключил лицензионные соглашения с крупнейшими российскими правообладателями на использование музыкальных произведений. Полная информация
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From Simple English Wikipedia, the free encyclopedia
A vacuum tube, also called a valve in British English, is an electronic device used in many older model radios, television sets, and amplifiers to control electric current flow. The cathode is heated, as in a light bulb, so it will emit electrons. This is called thermionic emission. The anode is the part that accepts the emitted electrons. The device may have other parts. Vacuum tubes must be hot to work. Most are made of glass, thus are fragile and can break. Vacuum tubes were used in the first computers like the ENIAC, which were large and need much work to continue operating.
Although the vacuum tube was invented by John Ambrose Fleming, it was Thomas Edison who later discovered the "Edison effect," which states that electricity does not necessarily need a solid material to move through; it can move through gas or vacuums as well. Without this realization, vacuum tubes would never have been invented. [1]
John Ambrose Fleming invented the first vacuum tube, the diode, in 1904. Lee De Forest invented the "audion" in 1906 (which was improved by others as the triode in 1908) and used in the first telephone amplifiers. Many other kinds were invented for various purposes.
The transistor became cheaper in the 1960s and was much smaller, worked on lower voltages, and used less power. In addition, unlike vacuum tubes, they were much less likely to be damaged by being dropped and had extremely long life. Eventually, they were also much cheaper than glass vacuum tubes. At this time, most radios, television sets, and amplifiers began using transistors instead. High powered electronics such as broadcasting transmitters were transistorized more slowly. Television receivers continued using the cathode ray tube until the mid-2000s.
Wikimedia Commons has media related to Vacuum tubes.
In the 21st century, vacuum tubes are rarely used in common electronic equipment. Many devices today rely on the transistor over the vacuum tube. Some devices that still use the vacuum tube, however, include:
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Vacuum tube - Simple English Wikipedia, the free encyclopedia
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