whisker detector wikipedia the free encyclopedia

's whisker - definition of 's whisker by The Free ...

's whisker. 1. (Electronics) a pointed wire used to make contact with the crystal in a crystal radio receiver. 2. (Electronics) any wire used to make contact with a semiconductor. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, or …


Transistor - Wikipedia, the free encyclopedia

Feb 07, 2005· From Wikipedia, the free encyclopedia. Photo of transistor types (tape measure marked in centimeters) ... Around the turn of the 20th century they were quite common as detectors in radios, used in a device called a "'s whisker". These detectors were somewhat troublesome, however, requiring the operator to move a small tungsten filament (the ...


Schottky diode — Wikipedia Republished // WIKI 2

Jul 25, 2019· The Schottky diode (named after the German physicist Walter H. Schottky), also known as Schottky barrier diode or hot-carrier diode, is a semiconductor diode formed by the junction of a semiconductor with a metal. It has a low forward voltage drop and a very fast switching action. The 's-whisker detectors used in the early days of wireless and metal rectifiers used in early power ...


Light-emitting diode - Wiki

From Wikipedia, the free encyclopedia A light-emitting diode (LED) (pronounced /ˌɛl iː ˈdiː/[1]) is a semiconductor ... Marconi Labs, using a crystal of silicon carbide and a 's-whisker detector.[4][5] Russian Oleg Vladimirovich Losev independently reported on the creation of an LED in 1927.


Diode - Wikipedia, The Free Encyclopedia | Diode | P–N ...

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Smoke detector - Simple English Wikipedia, the free ...

Smoke Detector COFEM with approved EN 54-7. A smoke sensor or smoke detector is a device that can detect smoke, which may be an indicator of a fire. There are two basic systems: Simple, standalone sensors usually make a sound or flash a light when they detect smoke. More sophisticated sensors usually send a signal to an fire alarm panel, or system.


Metal detector - Simple English Wikipedia, the free ...

Metal detector. A metal detector is a tool a person can use to help find metal nearby. It is useful for finding metal within other objects, or for finding metal underground. Most metal detectors will make a sound or have a needle move on a sensor in order to show where objects are. Most of the tiem a metal detector will tell you how close you ...


Wikizero - Detector (radio)

In radio, a detector is a device or circuit that extracts information from a modulated radio frequency current or voltage. The term dates from the first three decades of radio (1888-1918). Unlike modern radio stations which transmit sound (an audio signal) on an uninterrupted carrier wave, early radio stations transmitted information by radiotelegraphy.


's-whisker detector synonyms, 's-whisker detector ...

Synonyms for 's-whisker detector in Free Thesaurus. Antonyms for 's-whisker detector. 2 words related to crystal detector: crystal, detector. What are synonyms for 's-whisker detector?


John Milton Miller - WikiMili, The Free Encyclopedia

Apr 12, 2019· The most common type was the so-called whisker detector, which consisted of a piece of crystalline mineral, usually galena, with a fine wire touching its surface. The "asymmetric conduction" of electric current across electrical contacts between a crystal and a metal was discovered in 1874 by Karl Ferdinand Braun.


Diode - Wikipedia, the free encyclopedia

In electronics, a diode is a two-terminal device (thermionic diodes may also have one or two ancillary terminals for a heater).. Diodes have two active electrodes between which the signal of interest may flow, and most are used for their unidirectional electric current property. The varicap diode is used as an electrically adjustable capacitor.. The unidirectionality most diodes exhibit is ...


's-whisker detector | encyclopedia article by ...

Jan 20, 2021 - encyclopedia article about 's-whisker detector. Wikipedia (TheFreeDictionary.com mirror)


Light-Emitting Diode - Wikipedia, The Free Encyclopedia ...

Round of Marconi Labs, using a crystal of silicon carbide and a 's-whisker detector.[4][5] Russian Oleg Vladimirovich Losev independently reported on the creation of a LED in 1927.[6][7] His research was distributed in Russian, German and British …


Whisker (metallurgy) - Wikipedia

Metal whiskering is a phenomenon which occurs in electrical devices when metals form long whisker-like projections over time.Tin whiskers were noticed and documented in the vacuum tube era of electronics early in the 20th century in equipment that used pure, or almost pure, tin solder in their production. It was noticed that small metal hairs or tendrils grew between metal solder pads causing ...


Schottky diode

From Wikipedia, the free encyclopedia The Schottky diode (named after German physicist Walter H. Schottky; also known as hot carrier diode) i s a semiconductor diode with a low forward voltage drop and a very fast switching action. The 's-whisker detectors used in the early days of wireless can be considered as primitive Schottky diodes.


48731007-Nitrogen-Phosphorus-Detector-Theory.pdf ...

Nitrogen Phosphorus Detector From Wikipedia, the free encyclopedia The Nitrogen Phosphorus Detector (NPD) is a form of gas chromatography in which thermal energy is used to ionize an analyte.With this method, nitrogen and phosphorus can be selectively detected with a sensitivity that is 10 4 times greater than that for carbon.NP-Mode: A minimum concentration of hydrogen gas is used …


Transistor - Wikipedia, the free encyclopedia

From Wikipedia, the free encyclopedia. Photo of transistor types (tape measure marked in centimeters) Transistor in the SMD form factor. The transistor is a solid state semiconductor device used for amplification and switching. In essence, it has three terminals.


's-whisker detector - The Free Dictionary

's-whisker detector synonyms, 's-whisker detector pronunciation, 's-whisker detector translation, English dictionary definition of 's-whisker detector. n 1. a pointed wire used to make contact with the crystal in a crystal radio receiver 2. any wire used to make contact with a semiconductor Collins English...


's-whisker detector - Wikipedia, the free encyclopedia ...

Feb 2, 2015 - A small portable crystal radio with a 's whisker detector visible at top. Feb 2, 2015 - A small portable crystal radio with a 's whisker detector visible at top .. Saved from en ... Saved from en.wikipedia.org. Crystal detector.


Detector (radio) - Wikipedia

In radio, a detector is a device or circuit that extracts information from a modulated radio frequency current or voltage. The term dates from the first three decades of radio (1888-1918). Unlike modern radio stations which transmit sound (an audio signal) on an uninterrupted carrier wave, early radio stations transmitted information by radiotelegraphy.


Germanium detector | Article about Germanium detector by ...

semiconductor detector[¦sem·i·kən¦dək·tər di′tek·tər] (nucleonics) A particle detector which detects ionization produced by energetic charged particles in the depletion layer of a reverse-biased pn junction in a semiconductor, usually a very pure single crystal of silicon or germanium. McGraw-Hill Dictionary of Scientific & Technical Terms ...


Pin on 's whiskers detector

Jun 10, 2021 - Wikipedia article about 's-whisker detector. Jun 10, 2021 - Wikipedia article about 's-whisker detector. Pinterest. Explore. When autocomplete results are available use up and down arrows to review and enter to select. Touch device users, explore by touch or with swipe gestures.


Whisker - Simple English Wikipedia, the free encyclopedia

Whisker. A whisker is a long, thick hair around the mouth of some animals, mostly mammals such as cats and mice, that the animal uses to feel its surroundings. Some animals, such as cats, also have whiskers above their eyes and on the backs of their legs. Unlike other hair, whiskers should never be cut or trimmed, as this can confuse the animal.


Crystal detector - Wikipedia

May 23, 2003· The detector was a whisker detector, consisting of a piece of galena with a thin wire in contact with it on a part of the crystal, making a diode contact As a crystal radio has no power supply, the sound power produced by the earphone comes solely from the transmitter of the radio station being received, via the radio waves captured by the ...


's-Whisker Detector - The Free Dictionary

Jan 20, 2021· 's-Whisker Detector Before the advent of vacuum tubes and transistor technology, early radio devices received signals with the help of the 's whisker detector. An early and somewhat unstable electronic component, the detector was an integral part of the crystal radio sets that came into use in the early 1900s.


's-whisker detector - Wikipedia, the free encyclopedia ...

Feb 2, 2015 - A small portable crystal radio with a 's whisker detector visible at top. Feb 2, 2015 - A small portable crystal radio with a 's whisker detector visible at top. Pinterest. ... Saved from en.wikipedia.org. Crystal detector - Wikipedia. A small portable crystal radio with a 's whisker detector visible at top.


's-whisker detector | Article about 's-whisker ...

Looking for 's-whisker detector? Find out information about 's-whisker detector. A crystal diode, or an equivalent earlier crystal-catwhisker combination, used to rectify a modulated radio-frequency signal to obtain the audio or video...


's-whisker detector - uni-lj.si

's whisker detector visible at top Diagram of a crystal radiofrom 1922 using a 's-whisker detector 's-whisker detector From Wikipedia, the free encyclopedia A 's-whisker detector (sometimes called a crystal detector) is an antique electronic component consisting of a thin wirethat lightly touches a crystal of semiconducting mineral


Crystal detector - The Free Dictionary

Generally, the X-ray detection mode based on CsI(Tl), Nal(Tl), or CdW[O.sub.4] scintillation crystals adopts linear array detector or area array detector in industrial X-CT system [10-13], and a typical X-ray detection model is shown in Figure 1, which mainly contains X-ray source, collimator, scintillation crystal detector, and so forth.


Rectifier - Wikipedia, the free encyclopedia

Early radio receivers, called crystal radios, used a "'s whisker" of fine wire pressing on a crystal of galena (lead sulfide) to serve as a point-contact rectifier or "crystal detector". In gas heating systems flame rectification can be used to detect a flame. Two metal electrodes in the outer layer of the flame provide a current path and ...


Balanced detector | Article about balanced detector by The ...

balanced detector. [ ′bal·ənst di′tek·tər] (electronics) A detector used in frequency-modulation receivers; in one form the audio output is the rectified difference between voltages produced across two resonant circuits, one being tuned slightly above the carrier frequency and one slightly below.


Whisker - Simple English Wikipedia, the free encyclopedia

A whisker is a long, thick hair around the mouth of some animals, mostly mammals such as cats and mice, that the animal uses to feel its surroundings.Some animals, such as cats, also have whiskers above their eyes and on the backs of their legs. Unlike other hair, whiskers should never be cut or trimmed, as this can confuse the animal.


electronics | Devices, Facts, & History | Britannica

Electronics, branch of physics and electrical engineering that deals with the emission, behaviour, and effects of electrons and with electronic devices. Electronics encompasses an exceptionally broad range of technology. The term originally was applied to the study of electron behaviour and