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|Ship power= |Ship propulsion=[[diesel-electric]], twin screws, 2,780 hp

...9 to 11.00 dependant on labour charges at 30% of total, and assuming that electric welding is necessary, though it might not be with skilled metalworking usin Turndown (min-max power) is good and quick- maybe 4 out of 5 when compared with gas cooking.

'''Arc welding''' uses a [[welding power supply]] to create an electric arc between an electrode and the base material to melt the metals at the we ...905 Russian scientist Vladimir Mitkevich proposed the usage of three-phase electric arc for welding. In 1919, [[alternating current]] welding was invented by C

...ng steam engines as prime movers in many works requiring stationary motive power.In 1873, Thaddeus S. C. Lowe developed and patented the water gas process b ...nbsp;[[Megawatt|MW]] electric power and 4.5 MW heat. At the wood gas power plant are also two containers for experiments with wood gas. In one contain

|Title = Power Struggle ...ent]] using an [[Inverter (electrical)|inverter]]. It provides just enough power to last just a week, so a generator will need to be built to recharge the b

|Ship power= ...propulsion system; twin Cummins Diesels for endurance, and a GE [[General Electric J79|LM1500]] gas turbine for high-speed dash.

|Ship power= ...General Electric LM-1500 [[Gas Turbine]]. Pneumatic actuators allowed the power source to be switched between the two sources. Top speed on the gas turbin

|Ship power= ...neral Electric]] LM-1500 [[gas turbine]]. Pneumatic actuators allowed the power source to be switched between the two sources.

...nt of the [[Iowa class battleship|''Iowa''-class battleships]]. Due to its power it is regarded by many as one of the most effective [[naval artillery|battl ...rojectiles were 25 percent lighter than but had nearly as much penetration power as the [[18.1"/45|460 mm (18.1 in)]] guns of the Japanese [[Yamato class ba

...ee deck levels below the weather deck; deep magazine, gun control room and power room, gunbay and the gunhouse. ...Section assembly and replacing the hydraulic loading mechanism with an all electric system. This particular gun has been nicknamed the "[[Kryten]] Gun" by memb

;Power Rammed : An electric-hydraulic rammer is bolted to the top of the slide. This {{convert|5|to|7.5 ...the powder case, and then pulls down on the rammer lever. This causes the power rammer to ram the projectile and powder case into the chamber. As the powd

...and could elevate to a maximum of 30° and depress 10°. The underpowered electric motors gave a maximum training speed of 10° per second and a maximum eleva ...hand-rammed. Theoretically the guns could be loaded at any angle, but the power rammer was so weak that it could not ram shells at angles above 10°. This

...type of [[machine gun]] or [[autocannon]] that uses an external source of power, rather than diverting energy from the cartridge, to cycle the weapon, and ...firing of a cartridge to power the cycle of action, a chain gun uses an [[electric motor]] to drive the chain that moves in a rectangular circuit via four [[s

|manufacturer= [[General Electric]] |action= Electric-Motor, Hydraulic-Driven

...electric motor]]s and [[hydraulic machinery|hydraulic]]s supplied external power to operate the Gatling gun, like the [[GAU-8 Avenger]] and M134 [[Minigun]] ...ctric motor]]s are used to rotate the barrel, although systems that derive power from their ammunition do exist such as the [[GShG-7.62 machine gun]] and [[

...in 1975 with [[Signaal]] (now [[Thales Nederland]]) working with [[General Electric]], who supplied the [[GAU-8 Avenger|GAU-8]] gun. A prototype, the EX-83 was ...[M61 Vulcan]] used in the [[Phalanx CIWS]] so that it has greater stopping power despite the similar muzzle velocity and range.

...te of fire are considerable, they create less of a drain on the aircraft's power systems, and they accelerate to their maximum rate of fire much more quickl

...It is an electrically operated [[chain gun]], a weapon that uses external power instead of recoil to load its rounds. ...30 is mounted in the lower section of the chain gun turret. It uses a 2 kW electric motor to load 30 mm linkless ammunition at a rate of 625 [[±]] 25 shots pe

...ssentially a power-driven gun firing similar ammunition as the HS.820, the power driven mechanism would ensure operation even in the case of a misfire. .... Instead, it uses a 1.0 [[Horsepower|hp]] (750 W) [[Direct current|DC]] [[Electric motor|motor]], positioned in the [[receiver (firearms)|receiver]] to drive

...he .50 BMG cartridge, which offers long range accuracy and good [[stopping power]]. ...m; this increases to 1,200 rpm or more for AN/M3 aircraft guns fitted with electric or mechanical feed boost mechanisms.<ref>Dunlap, Roy F., ''Ordnance Went Up

|manufacturer= [[General Electric]] ...g aircraft]] for fifty years. The M61 was originally produced by [[General Electric]], and after several mergers and acquisitions is currently produced by [[Ge

...ight with a laser range finder and digital fire control system. Integrated power supply and diagnostics. 280 rounds on the gun and an automatic re-loading s ...[Japan Steel Works]] for the 35mm gun and [[Mitsubishi Electric|Mitsubishi Electric Corporation]] for the rest of the system<ref>{{jp icon}} [http://rightwing.

Lieutenant Burne reported that the original electric firing system, while working well under ideal conditions, required support ...in the cartridge could be replaced by an adaptor which allowed the use of electric or percussion [[List of British ordnance terms#Vent-Sealing Tube|tube]] to

}}</ref> During World War II, servomechanisms (called "power drives" in the U.S. Navy) were developed that allowed the guns to automatic ...ain armament, but many RN battleships and cruisers were fitted with Remote Power Control (RPC) via servomotors for secondary and primary armament, by the en

...ven by automotive and other internal combustion engines. Alternators in [[power station]]s driven by [[steam turbine]]s are called turbo-alternators. ...om the discovery of the [[Electromagnetic induction|magnetic induction of electric current]]. The early machines were developed by pioneers such as [[Michael

...[[List of the largest hydroelectric power stations|largest hydro-electric power station]] in the world]] ...lectricity generated by [[hydropower]], i.e., the production of electrical power through the use of the gravitational force of falling or flowing water. It

...oogle.com/?id=a4hPCX2XWDIC&pg=PA33|page=33|title=Domestic Architecture and Power|author=Jamieson, R W|publisher=Springer|year=2000|isbn=0306461765}}</ref> ...st aggregate source (40% of U.S. mercury emissions in 1999). This includes power plants fueled with gas where the mercury has not been removed. Emissions fr

103 Sarlo Power Mower Inc.<br/> 113 Emerson Electric Co. http://www.emersonelectric.com/<br/>

...terials which also display the [[ferroelectric effect]], in which a stable electric dipole can be oriented or reversed by applying an electrostatic field. Pyr In the 1960s, scientists at General Electric (GE) discovered that under the right manufacturing conditions, some ceramic

...polymer]]s that exhibits a change in size or shape when stimulated by an [[electric field]]. The most common applications of this type of material are in [[act ...’s experiment by formulating a theory on strain response to an applied [[electric field]] in 1899<ref name=ElectrochemistryEncyclopedia></ref>. It wasn’t u

...lene are used as a [[dielectric]] within certain high-performance [[Pulsed power|pulse]] and low-loss [[Radio frequency|RF]] [[capacitors]]. * Indoor electric powered profile electric models

...her flared off, sold as liquified petroleum gas under pressure, or used to power the refinery's own burners. During the winter, Butane (C₄H<sub>1 ...uch as those based on [[electricity]] (for example, [[electric vehicle|all-electric]] or [[hybrid vehicle]]s), [[air vehicle|compressed air]], or [[fuel cell]]

...ng an electric current over a distance with little energy lost. Electrical power grids rely on metal cables to distribute electricity. Home electrical syste ...anium]] and [[plutonium]] are used in [[Nuclear reactor technology|nuclear power plants]] to produce energy via [[nuclear fission]]. Mercury is a liquid at

In the case of a caesium source being melted in an [[electric arc furnace]] used for steel scrap, it is more likely that the caesium will ...fates of different elements present in ferrous scrap which is melted in an electric arc furnace. The average of the two extremes is shown and the error bars in

...tallurgy]] is used. Powders of the pure metal are compacted, heated using electric current, and further fabricated by cold working with annealing steps. Refr ...gth and corrosion resistance. Thorium as an alloying compound is used when electric arcs have to be established. The ignition is easier and the arc burns more

[[Image:Power-Heat-Set-2Fadenspannun-e.jpg‎|thumb|diagram by Müller]] [[Image:Power-Heat-Set-Wolle-Brücke-e.jpg|frame|left|Physical and chemical forces betwee

...surface physics studies. Vacuum pumps are also used in the production of electric lamps, vacuum tubes, and cathode ray tubes (CRTs), semiconductor processing ...e also used as base fluids for radiation-resistant greases used in nuclear power plant mechanisms. PPEs and their derivatives have also found use as vapor

Kerosene is widely used to power [[jet engine|jet-engined]] aircraft ([[jet fuel]]) and some [[rocket]]s, bu These were superseded by the electric light bulb and [[flashlight]]s powered by [[dry cell]] batteries, which are

...eburg, New York. Bradley's neighboring [[Union Electric Company]] electric power plants used exhaust steam from their steam generators to dry the fiber cond

...eny Ludlum steel furnace.jpg|thumb|right|White-hot steel pouring out of an electric arc furnace]] ...supply of cheap electricity.<ref>J.A.T. Jones, B. Bowman, P.A. Lefrank, ''Electric Furnace Steelmaking'', in ''The Making, Shaping and Treating of Steel'', 52

[[Image:Screwgun.jpg|right|thumb|Electric screw gun used to drive drywall screws]] ...terstate Rule]</ref> The Clean Air Interstate Rule also requested that the power plants install new scrubbers (industrial pollution control devices) to remo

..."grid-tied" systems feeding into the public electric network), low-voltage electric and avoidance of electro-magnetic and other possibly harmful forms of radia

...e most conspicuous of these is [[fly ash]], a by-product of [[coal]]-fired power plants. This significantly reduces the amount of quarrying and landfill spa * [[Fly ash]]: A by product of coal fired [[power station|electric generating plants]], it is used to partially replace Portland cement (by up

...rce with the [[hasp]], and placing it in such a position that no hazardous power sources can be turned on. The procedure requires that a '''tag''' be affixe ...equipment can be isolated and there is less chance of someone turning the power back on if they can see the work going on. These safety disconnects usually

| Injury from [[electric shock]] or [[bur]]n leading to [[unconsciousness]] or requiring [[resuscita Overhead electric lines - Unintentional incident in which plant or equipment either:

...ain to a stop if necessary. For many decades this practice continued on [[electric]] and [[Diesel locomotive|diesel]] [[locomotive]]s, even though a single pe ...fications of the ''controller handle'', the device that regulates traction power. The main requirement is that the train's emergency brakes are applied if

..., as of 2008 the minister at the [[Department for Work and Pensions]], the power to order medical supervision though these powers have been largely supersed ...-Aid) Regulations 1981, SI 1981/917, reg.7/ Sch.1</ref> as has section 62, power of minister to make regulations.<ref name="repealreg"/>

...nd IEC 60825 internationally, define "classes" of laser depending on their power and wavelength. These regulations also prescribe required safety measures, ...effects. Even moderately powered lasers can cause injury to the eye. High power lasers can also burn the skin. Some lasers are so powerful that even the [[

...the use of electrical equipment in an attempt to prevent hazards such as [[electric shock]] and damage to property and/or livestock. ...ion and testing of low voltage [[single phase]] and [[Three-phase electric power|poly-phase]] (e.g. nominal 240V and 415V) electrical equipment, connected t

**[[Electric shock|Electricity]] * [[NIOSH Power Tools Database]]

...T. Nguyen, A. D. Sutton, M. Brynda, J. C. Fettinger, G. J. Long, and P. P. Power|title = Synthesis of a Stable Compound with Fivefold Bonding Between Two Ch ...hromite ore (FeCr₂O₄) is reduced in large scale in [[electric arc furnace]] or in smaller smelters with either [[aluminium]] or [[silicon

...ower_line_wildfires |title=News 8 Investigation: SDG&E Could Be Liable For Power Line Wildfires|accessdate=2009-07-20|date=2007-11-05|publisher=UCAN News}}< ...C. Carcaillet, D. G. Gavin, S. P. Harrison, P. E. Higuera, F. Joos, M. J. Power, I. C. Prentice |journal =Nature Geoscience |volume=1 |pages=697–702 |yea

...' or '''EM field''') is a physical [[field (physics)|field]] produced by [[electric charge|electrically charged objects]]. It affects the behavior of charged o ...as the combination of an [[electric field]] and a [[magnetic field]]. The electric field is produced by stationary charges, and the magnetic field by moving c

...rtions of the body.<ref>[http://hypertextbook.com/facts/2000/JackHsu.shtml Electric Current Needed to Kill a Human]</ref> A domestic power supply voltage (110 or 230 V), 50 or 60-Hz AC current through the chest for

...nting Electrocutions of Workers Using Portable Metal Ladders Near Overhead Power Lines | journal = NIOSH Alert | volume = 89-110 | date = July 1989 | url

...urces of light and the situation did not improve until the introduction of electric hand lamps in the Victorian period. ...rom the safety lamps was very poor, and the problem was not resolved until electric lamps became widely available in the late 19th century.

| products = Power tools, pneumatic tools ...power tools]]. The company is known for introducing a number of noteworthy power tools, such as the first portable [[belt sander]], [[helical gear|helical-d

'''Skil''' is a brand of [[power tool|power handtools]] produced by [[Robert Bosch GmbH]]. The line traces its heritag ...eph L. Sullivan founded the ''Michel Electric Handsaw Company''. Mitchell Electric renamed itself ''Skilsaw Inc.''

products = Professional power tools ...crewdriver]]s and the [[Fein Multimaster RS]]. Fein invented the hand-held electric [[drill]] in 1895 and was responsible for many other [[innovations]].

| products = Power Tools, firestops ...cordless [[electric drill]]s, heavy [[angle drill]]s, [[laser level]]s, [[power saw]]s, and fasteners). '''Hilti''', a registered [[trademark]] of the vari

...9. They claim to be the inventor of the first [[electric]] [[carpentry]] [[power tool]], a [[door lock mortiser]] invented 1926. The company is located in {{Power tool manufacturers}}

[[Image:MakitaISD3.0.JPG|thumb|right|Makita power tool]] ...|Anjō]], [[Japan]]. Makita is a manufacturer of professional and consumer power tools, Makita operates factories in Japan, USA, UK, Canada, Mexico, Brazil,

| products = Professional power tools ...GmbH''' is a manufacturer of a sizeable range of professional [[Power tool|power tools]].

company_name = Emerson Electric| company_logo = [[Image:Emerson Electric Company.svg|center|200px|]]|

...eral-purpose hand tools and power tools. It is now a division of [[Emerson Electric Company]]. The vast majority of Ridgid products, notably including some power tools and wet dry vacuums, carry a lifetime warranty which covers everythin

...ric Tool Corporation|Milwaukee]], [[AEG]] [[power tools]], and [[Ryobi]] [[power tools]] and accessories, Ryobi and [[Homelite]] outdoor products, and [[The {{Power tool manufacturers}}

company_name = Milwaukee Electric Tool Corporation| products = [[Power tools]] |

...wanese company [[Jenn Feng Industrial Co., Ltd]]. Jenn Feng added electric power tools and pressure washers to the product line.<ref>[http://findarticles.co {{Power tool manufacturers}}

...ha}} ({{tyo|6752}} {{nyse|PC}}), formerly known as {{Nihongo|'''Matsushita Electric Industrial Co., Ltd.'''|松下電器産業株式会社|Matsushita Denki San ....jp/corp/news/official.data/data.dir/en081001-4/en081001-4.html Matsushita Electric Becomes Panasonic Corporation], Panasonic Corporation. 2008-10-01. Retrieve

|products = [[Automotive parts]], [[Power tools]], [[Security systems]] ...f name=YFbosch/> The subsidiary ''[[Bosch Rexroth]]'' produces hydraulic, electric, and pneumatic machinery for applications ranging from automotive to mining

...ool Corporation claims that in 1935, it was selling a lightweight 3/4-inch electric hammer drill [http://www.milwaukeetool.com/About/MilwaukeeStory/HistoryOfMi ...illustrated above) or it can be a replacement chuck that is installed on a power drill. When the drill is set to the "hammer drill" position it allows the c

A '''wall chaser''' is a [[power tool]] used for cutting narrow grooves in walls. Wall chasers are usually powered by an [[electric motor]], which in turn drives two abrasive discs like those found in an [[a

{{Redirect|Pneumatic hammer|the press|Power hammer}} ...d jackhammers are typically powered by [[compressed air]], but some used [[electric motor]]s. Larger jackhammers used on [[Heavy equipment (construction)|const

...tic motor using [[Pneumatics|compressed air]] is the most common source of power for pneumatic torque wrenches. [[Cubic feet per minute|CFM]] requirements a *[[Electric torque wrench]]

An '''angle grinder''', also known as a '''side grinder''', is a handheld [[power tool]] used for cutting, [[grinder (milling)|grinding]] and [[polishing]]. Angle grinders can be powered by an [[electric motor]], [[petrol engine]] or [[compressed air]]. The motor drives a geared

[[Image:Electric Torque Wrench.JPG|thumb|right|275px|Electric Torque Wrench.]] [[Image:Electric Torque Wrench Calibration.JPG|thumb|right|275px|Electric Torque Wrench on a calibration stand, wired to a computer via an infared ca

...a holding "paw" design to keep the wrench locked in position prior to each power stroke, others use varying designs, which as in all industries have debatab *[[Electric torque wrench]]

{{About|the power tool|the non-lethal directed energy weapon under development by the United [[File:Verfstripper.jpg|right|thumb||Example of hand held electric heat gun]]

[[File:Dremel.multipro.singlespeed.jpg|thumb|300px|An electric die grinder]] A '''die grinder''' is a handheld [[power tool]] used to [[grinding (abrasive cutting)|grind]] material, such as meta

...''air gun''', '''rattle gun''', '''torque gun''') is a [[socket wrench]] [[power tool]] designed to deliver high [[torque]] output with minimal exertion by ...[[electric]] or [[hydraulic]] power is also used, with [[cordless|cordless electric]] devices becoming increasingly popular in recent times.<ref>[http://www.ag

...n their electric [[power tool]] counterparts, as well as having a higher [[power to weight ratio]], allowing a smaller, lighter tool to accomplish the same {{Power tool manufacturers}}

...mounts of sidetone in the telephone set'', Technical Report 19412, Western Electric Company (1918) * [[Stevens' power law]] — [[Stanley Smith Stevens]]

* [[André-Marie Ampère]] — [[ampere]] — unit of electric current, [[Ampère's law]] * [[Alexander Graham Bell]] — [[bel]] — unit of relative power level; [[Bell Labs]], [[BellSouth]], [[Bellcore]] (now [[Telcordia Technolo

...s, it relates the circulating [[magnetic field]] in a closed loop to the [[electric current]] passing through the loop. Discovered by [[André-Marie Ampère]]. ...ation between the electric [[flux]] flowing out a closed surface and the [[electric charge|charge]] enclosed in the surface. It was formulated by [[Carl Friedr

* [[ampere]] (A), electric current &ndash; [[André-Marie Ampère]] * [[coulomb]] (C), electric charge &ndash; [[Charles-Augustin de Coulomb]]

|Electric flu | A condition when an electric Pokémon builds up too much electricity in its body or makes contact with a

...numbing effects of standing in pools of water on a beach that contained [[electric fish]].<ref name="Jensen">[Jensen, Jack E., Richard R. Conn, Gary Hazelrigg ...[Action potential|nerve signals]], thus permitting the machine to use less power while attaining greater and deeper penetration of its low-frequency current

* Vaporized off improvised devices; such as a an electric stove element, car cigarette lighter, or pressed between two heated knives ...countless laboratory explosions throughout modern history. Its explosive power can be compared with that of military explosives, though it is much less st

...ue]] or [[lavender (color)|lavender]]ish glow when the gas is excited by [[Electric arc|electrical discharge]]. Xenon emits a band of [[Spectral line|emission ...as a [[spin (physics)|spin]] of 1/2, and therefore a zero [[electric field|electric]] [[quadrupole moment]], the ¹²⁹Xe nucleus does not experience a

...irie du Sac, Wisconsin|Prairie du Sac]] electric substation which supplied power to the ammunition plant, but was frightened off by the night watchman.<ref

...derson]] thus writes: <blockquote> <small> "In March 1871 the Commune took power in the abandoned city and held it for two months. Then [[Adolphe Thiers|Ver ...n U.S. president [[William McKinley]], killing him. He is then killed by [[electric chair|electrocution]] on October 29 (Czolgosz' anarchist status is a matter

...omplicity in a kidnapping with the aggravating circumstances of [[abuse of power]]. There are now 26 EU arrest warrants for U.S. citizens in connection to t ...d Egyptians among his captors. He also said that he had been beaten, given electric shocks, [[deprived of sleep]], blindfolded for eight months and brainwashed

...ricated; this results in a higher frequency of oscillation given a certain power consumption. ...[MOSFET]]s, for example, the gate [[capacitance]] must be charged before [[electric current|current]] can flow between the source and the drain. Thus, the out

...rate electrical switches, such as a [[time switch]], which cuts electrical power. ...ms have mechanisms similar to mechanical [[alarm clock]]s; they require no power, and can be stored for long periods of time. The most widely-known applicat

The '''electric circuit extraction''' or simply '''circuit extraction''', also '''netlist ...tatic timing analysis]], [[signal integrity]], [[power optimization (EDA)| power analysis and optimization]], and [[Formal equivalence checking|logic to lay

...]]s reduce circuit costs by eliminating the need for additional isolated [[power supply]]. They are usually used as analogue interfaces between systems wit ...st applications, an output [[voltage]] is obtained by passing the output [[Electric current|current]] through a [[resistor]].

...sis]]. Network analysis starts with a network and by applying the various electric circuit theorems predicts the response of the network. Network synthesis o ....'', '''Vol 18''', pp257-353, September 1939.</ref> Both modern computing power and the practice of directly implementing filter transfer functions in the

...evice reliability include [[gas]], [[dust]], contamination, [[voltage]], [[Electric current|current]] density, [[temperature]], [[humidity]], [[mechanical str ...bility include: [[voltage]] derating, [[Electric power|power]] derating, [[Electric current|current]] derating, [[metastability]], logic timing margins ([[logi

| '''[[Electric power|power]] input''' ...op-outs and hold-up. The power input tests simulate conditions of aircraft power from before engine start to after landing including emergencies.

...coal furnaces, by [[Albert Butz]], in 1885 and subsequent innovations in [[electric motor]]s and [[process control]] by '''Minneapolis Heat Regulator Company'' ...Later, when their number had been reduced to five, ("By the 1970s, General Electric and RCA had left the business"<ref name="HOMC_page_143">

***01005 (0402 metric): {{convert|0.016|x|0.008|in|mm|abbr=on}} Typical power rating for resistors 1/32 watt ***0201 (0603 metric): {{convert|0.024|x|0.012|in|mm|abbr=on}} Typical power rating for resistors 1/20 watt

...[[William Hyde Wollaston]]. Wollaston was attempting to decompose water by electric shock but found that both hydrogen and oxygen were present at both electrod ...the jar and the resistance of the load.<ref>William Thomson, "On transient electric currents", ''Philosophical Magazine'', '''vol 5''', pp.393-405, June 1853</

...from the base station. However, a base station has grid power and can use power-hungry, but very flexible [[software radio]]s. Such base stations can be e ..., parasitic inductances and capacitances, and [[electronic filter|filter]] power connections.

...ypes show the connections between the devices, including [[electric power|power]] and [[signal (information theory)|signal]] connections. Arrangement of th ...ve made it a [[coil]]. These wirewound resistors are now used only in high-power applications, smaller resistors being cast from ''carbon composition'' (a m

...ally made from copper, but other metals are used, notably [[aluminium]] in power lines. Although this article is limited to describing reflections on conduc ..., causing [[overload]] power in [[transmitter]]s and [[overvoltage]]s on [[power line]]s. However, the reflection phenomenon can also be made use of in such

...tromagnetic interference]], especially 50/60&nbsp;Hz noise from electrical power lines. This interference can obscure the biological signals, making them ve

...al throughput, such as a [[microprocessor]] chip or other [[Electric power|power]] handling [[semiconductor]] to stabilise its [[temperature]] through incre ...battery is operated at higher or in particular lower temperatures, so some electric cars have heating and cooling for their batteries<ref>http://www.mpoweruk.c

...l [[Amperes]]. These types are better suited to on-off switching of the AC power to a device than the gold-plated contact switches. They often have [[silver ...hes with mechanical contacts are also available, and are often used as the power switch for equipment that is used very frequently or which may be subjected

...needs no [[battery (electricity)|battery]] or power source and runs on the power received from [[radio waves]] by a long wire [[antenna (radio)|antenna]]. ...lectric power]] such as a [[battery (electricity)|battery]] or the [[mains power]] to [[Amplifier|amplify]] the weak radio signal from the [[antenna (radio)

...'' is derived from the Greek roots ''hetero-'' "different", and ''-dyne'' "power". The original heterodyne technique was pioneered by Canadian inventor [[Re ...cted in cascade to make workable equipment, which drew enormous amounts of power in operation and required a team of maintenance engineers. The strategic va

...responding signal source) to [[Maximum power transfer theorem|maximize the power transfer]] and/or minimize [[Signal reflection|reflections]] from the load. ...impedance ''Z''_S and load impedance ''Z''_L, maximum power transfer is obtained when

...er voltage devices are used on non-critical paths to reduce static leakage power without incurring a delay penalty. Typical high voltage devices reduce stat ...al power rail. High voltage devices connecting the power rails and virtual power rails are turned off in [[sleep mode]]. High voltage devices are used as sl

...[digital camera]]s.<ref>{{cite news | title = Moore's Law Corollary: Pixel Power | author = Nathan Myhrvold | work = New York Times | date = 7 June 2006 | u Predictions of similar increases in computer power had existed years prior. [[Alan Turing]] in his 1950 paper [[Computing Mach

...litude modulation]] that more efficiently uses [[electric power|electrical power]] and [[bandwidth (signal processing)|bandwidth]]. ...signal. Single-sideband modulation avoids this bandwidth doubling, and the power wasted on a carrier, at the cost of somewhat increased device complexity.

...c noise|noise immunity]] and low static [[power consumption]]. Significant power is only drawn when the [[transistor]]s in the CMOS device are switching bet ...d circuits (chips). CMOS circuitry dissipates [[Low-power electronics|less power]] than logic families with resistive loads. Since this advantage has increa

...discharging the [[Device under test|capacitor under test]] with a known [[Electric current|current]] and measuring the rate of rise of the resulting [[voltage ...to high ESR with capacity within tolerance, particularly in [[switch-mode power supplies]], are common.

# A source of [[electric current]], # A '''low voltage''' test. A low power, low voltage source is connected between two conductors that should not be

...based curve tracer systems, can be configured by specifying the number and power level of the Source Measure Units (SMUs) to be plugged into the slots in th ...er software. Discrete SMUs offer a broader range of current, voltage, and power levels than mainframe-based systems permit and allow the system to be recon

...The tester itself is small device which looks like the "plug in" end of a power cord, with several lights on it rather than an attached cord. Although a [[ ..."hot" connection to a varying electrical [[voltage]], and a [[Domestic AC power plugs and sockets#Neutral|neutral]] connection to complete the circuit. If

The '''wattmeter''' is an instrument for measuring the [[electric power]] (or the supply rate of [[electrical energy]]) in [[watt]]s of any given [ ...d: volts, current ,in amperes, apparent instantaneous power, actual power, power factor, energy in [k]Wh over a period of time, and cost of electricity cons

...[[sinusoidal]] current (as invariably used in [[alternating current]] (AC) power distribution systems), but in conjunction with more advanced instrumentatio ...nusoidal AC waveforms. Due to its physical size it is generally limited to power transmission frequencies up to around 100&nbsp;Hz.

...d be mounted in any position and allowed accurate measurements in electric power systems. ...were called "multipliers".<ref>L. A. Geddes, ''Looking back: how measuring electric current has improved through the ages'', ''IEEE Potentials'', Feb/Mar 1996,

...that produces a rotary deflection of some type of pointer in response to [[electric current]] flowing through its [[coil]] in a [[magnetic field]]. . Galvanometers were the first instruments used to detect and measure electric currents. Sensitive galvanometers were used to detect signals from long sub

[[Image:Vacuum tube multimeter.jpg|thumb|200px| A "Sylvania Electric" multimeter tester for vacuum tubes]] The simplest of all tube testers. Tubes are used as low power rectifier, at a fraction of it's normal emission. By mistake referred to as

The tester consists of an indicator in series with a source of electrical power - normally a [[Battery (electricity)|battery]], terminating in two [[test l The indicator may be an [[electric light]] or such a device might also be fitted with a [[buzzer]].<ref name=o

...and degraded operation; much modern equipment, in particular [[switch-mode power supplies]], is very sensitive to ESR, and a capacitor with high ESR can cau ...s is usually unnecessary. When a capacitor whose ESR is critical degrades, power dissipation through the higher ESR usually causes rapid and large runaway i

* [[Power supply|Power supplies]] * [[EMF Meter]] (Measures Electric and Magnetic Fields)

...used to simulate the effects of lightning on [[Electric power transmission|power line gear]] and aviation equipment. ...pply, the faster it will charge. Thus, in this design, those closer to the power supply will charge quicker than those farther away. If the generator is all

...equipment]] used to determine the presence or absence of an [[Electricity|electric]] [[voltage]] in a piece of equipment under test. The test light is simply an electric lamp connected with one or two [[Electrical insulation|insulated]] [[wire]]

Directional coupler. Two resistor power divider. ...some VNA architectures (six-port) that infer phase and magnitude from just power measurements.

...form measurement. This consisted of a special single-contact [[commutator (electric)|commutator]] attached to the shaft of a spinning rotor. The contact point ...allowed operating voltage to be dropped to a few hundred volts. [[Western Electric]] introduced a commercial tube of this type, which relied on a small amount

...fier]], a timebase, a horizontal amplifier and a [[electronic power supply|power supply]]. These are now called "analog" oscilloscopes to distinguish them f ...ential difference]] across one pair of plates, giving rise to a vertical [[electric field]] through which the electron beam passes. When the plate potentials a

...ive electronic parts, such as [[transistor]]s, so they require no external power. ...e user to safely hold the probe while being protected from the danger of [[electric shock]]. Within the plastic body of the probe, the wire is connected to a r

...re commonly used in metering and [[protective relay]]s in the [[electrical power industry]]. ...ed extensively for measuring current and monitoring the operation of the [[power grid]]. Along with voltage leads, revenue-grade CTs drive the electrical ut

...r meter''' is an instrument which measures the [[electric power|electrical power]] at [[microwave]] [[frequency|frequencies]]. ...per, which displays the power reading. The head may be referred to as a '''power sensor''' or '''mount'''.

...full frequency range of the instrument. The primary use is to measure the power of the spectrum of known and unknown signals. The input signal a spectrum a ...electricity|electrical]] signals, dominant [[frequency]], [[Electric Power|power]], [[distortion]], [[harmonics]], [[Bandwidth (signal processing)|bandwidth

...ltage versus another. This is especially useful for graphing I-V curves ([[Electric current|current]] versus [[voltage]] characteristics) for components such a ...fier]], a timebase, a horizontal amplifier and a [[electronic power supply|power supply]]. These are now called 'analog' scopes to distinguish them from the

..., it is designed for low [[electric current|current]] and [[electric power|power]] and medium [[voltage]], and can operate at moderately high speeds. The ty

.... It is designed for low [[electric current|current]] and [[electric power|power]], medium [[voltage]], and can operate at moderately high speeds. This tran

...igned for low to medium [[electric current|current]], low [[electric power|power]], medium [[voltage]], and can operate at moderately high speeds. It is m | title = Build your own low-power transmitters: projects for the electronics experimenter