Vacuum tube - Wikipedia
网页Vacuum tubes are practical alternatives to solid-state devices in generating high power at radio frequencies in applications such as industrial radio frequency heating, particle accelerators, and broadcast transmitters.
What is vacuum tube and how does it work? - Physics Network
网页2023年5月22日 · 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.
Electron tube | Vacuum Tubes, Cathode Rays, & Applications
网页An electron tube has two or more electrodes separated either by vacuum (in a vacuum tube) or by ionized gas at low pressure (in a gas tube). Its operation depends on the generation and transfer of electrons through the tube from one electrode to another.
What is a Vacuum Tube? - Computer Hope
网页2024年9月10日 · The vacuum tube is a glass tube with its gas removed, creating a vacuum. Vacuum tubes contain electrodes for controlling electron flow and were used in early computers as a switch or an amplifier. The picture shows a collection of different vacuum tubes used with different devices.
Vacuum Tubes: The World Before Transistors - Engineering.com
网页2018年1月19日 · Despite the emergence of the transistor, vacuum tubes aren’t completely extinct, and they remain useful in a handful of niche applications. For example, vacuum tubes are still used in high power RF transmitters, as they can generate more power than modern semiconductor equivalents.
The History and Importance of the Vacuum Tube - ThoughtCo
网页2019年2月3日 · A vacuum tube, also called an electron tube, is a sealed-glass or metal-ceramic enclosure used in electronic circuitry to control the flow of electrons between the metal electrodes sealed inside the tubes. The air inside the tubes is removed by a vacuum.
www.thetubestore.com - Vacuum Tubes, Matched, Fast Shipping
网页The best place to purchase vacuum tubes for your tube amplifier! Amp tubes for your high-end home audio tube amps to classic guitar amps. Don't know which power tube or preamp tube you need, or what audio tubes you can substitute? Let us help you.
Vacuum Tube - Encyclopedia.com
网页2018年5月11日 · A vacuum tube is a hollow glass cylinder containing a positive electrode and a negative electrode between which is conducted in a full or partial vacuum. A grid between these electrodes controls the flow of electricity .
Vacuum tube - Explained and animated with 3d - YouTube
网页2016年10月30日 · Vacuum tube - Explained and animated with 3d In electronics, a vacuum tube, an electron tube, [or just a tube (North America), or valve (Britain and some other regions), is a device that...
Vacuum Tubes: Episode 1 - The Basics and the Diode - YouTube
网页I cover what vacuum tubes are and the fundamentals behind their operation and then demonstrate two differen... In this episode we finally dig into vacuum tubes.
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