Definition of Vacuum tube. Meaning of Vacuum tube. Synonyms of Vacuum tube

Here you will find one or more explanations in English for the word Vacuum tube. Also in the bottom left of the page several parts of wikipedia pages related to the word Vacuum tube and, of course, Vacuum tube synonyms and on the right images related to the word Vacuum tube.

Definition of Vacuum tube

Vacuum tube
2. The condition of rarefaction, or reduction of pressure below that of the atmosphere, in a vessel, as the condenser of a steam engine, which is nearly exhausted of air or steam, etc.; as, a vacuum of 26 inches of mercury, or 13 pounds per square inch. Vacuum brake, a kind of continuous brake operated by exhausting the air from some appliance under each car, and so causing the pressure of the atmosphere to apply the brakes. Vacuum pan (Technol.), a kind of large closed metallic retort used in sugar making for boiling down sirup. It is so connected with an exhausting apparatus that a partial vacuum is formed within. This allows the evaporation and concentration to take place at a lower atmospheric pressure and hence also at a lower temperature, which largely obviates the danger of burning the sugar, and shortens the process. Vacuum pump. Same as Pulsometer, 1. Vacuum tube (Phys.), a glass tube provided with platinum electrodes and exhausted, for the passage of the electrical discharge; a Geissler tube.

Meaning of Vacuum tube from wikipedia

- In electronics, a vacuum tube, an electron tube, or valve (British usage) or, colloquially, a tube (North America), is a device that controls electric...
- This is a list of vacuum tubes or thermionic valves, and low-pressure gas-filled tubes, or discharge tubes. Before the advent of semiconductor devices...
- A vacuum tube computer, now termed a first-generation computer, is a computer that uses vacuum tubes for logic circuitry. Although su****ded by second...
- (see below). Vacuum became a valuable industrial tool in the 20th century with the introduction of incandescent light bulbs and vacuum tubes, and a wide...
- Vacuum tube computers, now termed first generation computers, are programmable digital computers using vacuum tube logic circuitry. They were preceded...
- The 807 is a beam tetrode vacuum tube, widely used in audio- and radio-frequency power amplifier applications. 807s were used in audio power amplifiers...
- In the early days of electronics, vacuum tube (called valves in British contexts) devices (such as radios) were powered by batteries. Each battery had...
- Rogers Vacuum Tube Company (formally named Radio Manufacturing Corporation Limited) was founded as "Standard Radio Manufacturing" in 1925 by Edward S...
- other vacuum-tube oscillators. Vacuum-tube feedback oscillators became the basis of radio transmission by 1920. However, the triode vacuum tube oscillator...
- electrons emitted from the cathode filament. In fact, each tube in a VFD is a triode vacuum tube because it also has a mesh control grid. Unlike liquid crystal...
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