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Gas filled tubes (also known as Discharge Tubes) are arrangements of electrodes in a gas within an insulating, temperature-resistant envelope. Although the envelope was classically glass, power tubes often use ceramics, and military tubes often use glass-lined metal.
Gas filled tubes operate by ionizing the gas to get conduction. Both hot and cold cathode type devices are encountered. Depending on application, either glow discharge or arc discharge may be emphasised. An ion is an atom or group of atoms that normally are electrically neutral and achieve their status as an ion by loss (or addition) of an electron. ...
Electric glow discharge is a type of plasma formed by passing a current at 100V to several kV through a gas - usually argon or another noble gas. ...
A spark plug. ...
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Switching gas filled tubes
Some important examples include the thyratron, krytron, and ignitron tubes. A thyratron is a type of gas filled tube used as a high energy electrical switch. ...
Krytron is one of the earliest developments of the EG&G Corporation. ...
An ignitron is a type of controlled rectifier dating from the 1930s. ...
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Lighting and display gas filled tubes Specialized low-pressure gas filled tube devices include the Nixie tube (used to display numerals) and the Decatron (used to count or divide pulses, with display as a secondary function). The ten digits of a Z560M Nixie tube. ...
Neon signage and neon lamps are other types of low-pressure gas filled tubes. a neon sign at night Neon signage is produced by the craft of bending glass tubing into shapes. ...
Lighting neon lamp, two 220/230 volt and 110 V neon lamps and a screwdriver with neon lamp inside A neon lamp is a gas discharge lamp containing neon gas (or in types with different colors also other noble gas) at low pressure. ...
Xenon flash lamps are gas filled tubes used in cameras and strobe lights to produce bright flashes of light. Xenon flash lamp being fired. ...
A camera is a device used to take pictures (usually photographs), either singly or in sequence, with or without sound recording, such as with video cameras. ...
An animation illustrating the effect of strobe light A strobe light or stroboscopic lamp, commonly called a strobe, is a device used to produce regular flashes of light. ...
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Other types of gas filled tubes A type of gas filled tube called the Geiger-Müller tube is used to detect and measure ionizing radiation. A Geiger-Müller tube (or GM tube) is the sensing element of a Geiger counter instrument that can detect a single particle of ionizing radiation, and typically produce an audible click for each. ...
Ionizing radiation has many practical uses, but it is also dangerous to human health. ...
One of the proposed designs for a fusion reactor is basically a gas filled tube, the Farnsworth-Hirsch Fusor. US3386883 - fusor -- June 4, 1968 The Farnsworth-Hirsch Fusor, or simply fusor, is an apparatus designed by Philo T. Farnsworth to create nuclear fusion. ...
A tube in which electrons move through a vacuum (or gaseous medium) within a gas-tight envelope is called an electron tube.
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See also [edit] In electronics, a vacuum tube (U.S. and Canadian English) or (thermionic) valve (outside North America) is a device generally used to amplify, or otherwise modify, a signal by controlling the movement of electrons in an evacuated space. ...
A mercury arc valve (mercury vapor rectifier) is a type of electrical rectifier which converts alternating current into direct current. ...
A voltage regulator tube (VR tube) is an electronic component used as a shunt regulator to hold a voltage constant at a pre-determined level. ...
Electric glow discharge is a type of plasma formed by passing a current at 100V to several kV through a gas - usually argon or another noble gas. ...
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