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1 high-voltage lamp
лампа высокого напряжения
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[Я.Н.Лугинский, М.С.Фези-Жилинская, Ю.С.Кабиров. Англо-русский словарь по электротехнике и электроэнергетике, Москва, 1999 г.]Тематики
- электротехника, основные понятия
EN
Англо-русский словарь нормативно-технической терминологии > high-voltage lamp
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2 high-voltage lamp
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3 high-voltage lamp
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4 high-voltage
высоковольтный
– high-voltage bushing
– high-voltage capacitor
– high-voltage equipment
– high-voltage generator
– high-voltage insulation
– high-voltage kenotron
– high-voltage lamp
– high-voltage side
– high-voltage substation
– high-voltage winding
high-voltage rectifier kenotron — выпрямительный высоковольтный кенотрон
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5 high-voltage halogen lamp
high-voltage halogen lamp Hochvolt-Halogenlampe f (arbeitet ohne Transformator)English-German dictionary of Electrical Engineering and Electronics > high-voltage halogen lamp
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6 high-voltage test
испытания на диэлектрическую прочность; высоковольтное испытаниеEnglish-Russian dictionary on nuclear energy > high-voltage test
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7 lamp
1) лампа
2) ламповый
3) светильня
4) фонарный
5) осветительный
– alarm lamp
– arc lamp
– arc-discharge lamp
– black-out lamp
– busy lamp
– calling lamp
– carbon lamp
– clearing lamp
– coiled-coil lamp
– colored lamp
– comparison lamp
– cord lamp
– courtesy lamp
– Davy lamp
– daylight lamp
– dial lamp
– discharge lamp
– double-ended lamp
– electroluminescent lamp
– finish lamp
– flash lamp
– floor lamp
– fluorescent lamp
– frosted lamp
– gas-discharge lamp
– gas-filled lamp
– germicidal lamp
– glow lamp
– glow-discharge lamp
– hand lamp
– head lamp
– helmet lamp
– high-pressure lamp
– high-voltage lamp
– illuminating lamp
– incandescent lamp
– indicating lamp
– indicator lamp
– infrared lamp
– lamp door
– lamp extractor
– lamp post
– landing lamp
– luminescent lamp
– mercury lamp
– mercury-arc lamp
– metal-filament lamp
– miner's lamp
– mixed-light lamp
– modulator lamp
– neon-filled lamp
– opal lamp
– panel lamp
– pilot lamp
– point-source lamp
– pritner lamp
– projection lamp
– projector lamp
– quartz lamp
– reflector lamp
– resonance lamp
– rough-service lamp
– safety lamp
– series lamp
– signalling lamp
– sodium lamp
– spectral lamp
– supervisory lamp
– switch lamp
– switchboard lamp
– table lamp
– tungsten lamp
– tungsten-halogen lamp
– turn on lamp
– ultra-violet lamp
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8 high
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9 высоковольтная лампа
high-voltage lampБольшой англо-русский и русско-английский словарь > высоковольтная лампа
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10 Brush, Charles Francis
[br]b. 17 March 1849 Euclid, Michigan, USAd. 15 June 1929 Cleveland, Ohio, USA[br]American engineer, inventor of a multiple electric arc lighting system and founder of the Brush Electric Company.[br]Brush graduated from the University of Michigan in 1869 and worked for several years as a chemist. Believing that electric arc lighting would be commercially successful if the equipment could be improved, he completed his first dynamo in 1875 and a simplified arc lamp. His original system operated a maximum of four lights, each on a separate circuit, from one dynamo. Brush envisaged a wider market for his product and by 1879 had available on arc lighting system principally intended for street and other outdoor illumination. He designed a dynamo that generated a high voltage and which, with a carbon-pile regulator, provided an almost constant current permitting the use of up to forty lamps on one circuit. He also improved arc lamps by incorporating a slipping-clutch regulating mechanism and automatic means of bringing into use a second set of carbons, thereby doubling the period between replacements.Brush's multiple electric arc lighting system was first demonstrated in Cleveland and by 1880 had been adopted in a number of American cities, including New York, Boston and Philadelphia. It was also employed in many European towns until incandescent lamps, for which the Brush dynamo was unsuitable, came into use. To market his apparatus, Brush promoted local lighting companies and thereby secured local capital.[br]Principal Honours and DistinctionsChevalier de la Légion d'honneur 1881. American Academy of Arts and Sciences Rumford Medal 1899. American Institute of Electrical Engineers Edison Medal 1913.Bibliography18 May 1878, British patent no. 2,003 (Brush dynamo).11 March 1879, British patent no. 947 (arc lamp).26 February 1880, British patent no. 849 (current regulator).Further ReadingJ.W.Urquhart, 1891, Electric Light, London (for a detailed description of the Brush system).H.C.Passer, 1953, The Electrical Manufacturers: 1875–1900, Cambridge, Mass., pp. 14– 21 (for the origins of the Brush Company).S.Steward, 1980, in Electrical Review, 206:34–5 (a short account).See also: Hammond, RobertGW -
11 capacitor discharge light
A lamp in which high-intensity flashes of extremely short duration are produced by the discharge of electricity at high voltage through a gas enclosed in a tube.(AN 14/I)Лaмпa, прoизвoдящaя вспышки свeтa высoкoй интeнсивнoсти и чрeзвычaйнo кoрoткoй прoдoлжитeльнoсти при прoпускaнии элeктричeскoгo рaзрядa высoкoгo нaпряжeния чeрeз гaз, зaключённый в трубкe.International Civil Aviation Vocabulary (English-Russian) > capacitor discharge light
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12 ignition device
<tech.gen> ■ Zündvorrichtung f< expl> ■ Zündapparat m -
13 ignitor
Toyota <mvhcl.el> (control unit of electronic ignition) ■ Zündsteuergerät n ; Zündschaltgerät n -
14 starter
<el> ■ Starter m<mvhcl.el> ■ Starter m ; Anlasser m -
15 Hammond, Robert
[br]b. 19 January 1850 Waltham Cross, Englandd. 5 August 1915 London, England[br]English engineer who established many of the earliest public electricity-supply systems in Britain.[br]After an education at Nunhead Grammar School, Hammond founded engineering businesses in Middlesbrough and London. Obtaining the first concession from the Anglo- American Brush Company for the exploitation of their system in Britain, he was instrumental in popularizing the Brush arc-lighting generator. Schemes using this system, which he established at Chesterfield, Brighton, Eastbourne and Hastings in 1881–2, were the earliest public electricity-supply ventures in Britain. On the invention of the incandescent lamp, high-voltage Brush dynamos were employed to operate both arc and incandescent lamps. The limitations of this arrangement led Hammond to become the sole agent for the Ferranti alternator, introduced in 1882. Commencing practice as a consulting engineer, Hammond was responsible for the construction of many electricity works in the United Kingdom, of which the most notable were those at Leeds, Hackney (London) and Dublin, in addition to many abroad. Appreciating the need for trained engineers for the new electrical industry and profession then being created, in 1882 he established the Hammond Electrical Engineering College. Later, in association with Francis Ince, he founded Faraday House, a training school that pioneered the concept of "sandwich courses" for engineers. Between 1883 and 1903 he paid several visits to the United States to study developments in electric traction and was one of the advisers to the Postmaster General on the acquisition of the telephone companies.[br]Bibliography1884, Electric Light in Our Homes, London (one of the first detailed accounts of electric lighting).1897, "Twenty five years" developments in central stations', Electrical Review 41:683–7 (surveys nineteenth-century public electricity supply).Further ReadingF.W.Lipscomb, 1973, The Wise Men of the Wires, London (the story of Faraday House). B.Bowers, 1985, biography, in Dictionary of Business Biography, Vol. III, ed. J.Jeremy, London, pp. 21–2 (provides an account of Hammond's business ventures). J.D.Poulter, 1986, An Early History of 'Electricity Supply, London.GW -
16 low
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17 resistor
1) резистор•-
absorbing resistor
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adjustable resistor
- audio-fidelity control resistor -
auxiliary resistor
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ballasting resistor
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ballast resistor
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biasing resistor
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bias resistor
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bleeder resistor
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brake resistor
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braking resistor
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bulk resistor
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bypass resistor
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calibration resistor
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carbon black resistor
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carbon composition resistor
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carbon resistor
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carbon-film resistor
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carbon-resin film resistor
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carbon-resin lacquer resistor
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cermet resistor
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charging resistor
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chip resistor
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circuit-breaker making resistor
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circuit-breaker opening resistor
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compensated-impurity resistor
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composite-film resistor
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composition-type resistor
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constant torque resistor
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continuously adjustable resistor
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control resistor
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current-limiting resistor
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damping resistor
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decoupling resistor
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deposited-carbon resistor
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diffused-layer resistor
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diffused resistor
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discharge resistor
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double-wiper resistor
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dual-unit single-shaft variable resistor
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dumping resistor
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earthing resistor
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evaporated-film resistor
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evaporated resistor
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field-regulating resistor
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filamentary resistor
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film resistor
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fixed-value resistor
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fixed resistor
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fusible resistor
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ganged variable resistor
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half-finished resistor
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headless resistor
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heat-variable resistor
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helical-track resistor
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hermetically sealed resistor
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high-precision variable resistor
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high-value resistor
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ignition resistor
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instrument series resistor
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instrument shunt resistor
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insulated resistor
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integrated-circuit resistor
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integrated resistor
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junction-type resistor
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junction resistor
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lamp resistor
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leaded resistor
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lead resistor
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light-dependent resistor
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limiting resistor
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linear resistor
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line-dropping resistor
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liquid resistor
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loading resistor
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load resistor
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load-limiting resistor
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low-ohmic resistor
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low-profile resistor
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low-value resistor
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matching resistor
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memory resistor
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metal-film resistor
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metal-glaze resistor
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metallic resistor
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metallized resistor
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metal-oxide resistor
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metal-oxide-semiconductor resistor
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microchip resistor
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molded track resistor
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multiplier resistor
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multiturn variable resistor
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negative temperature-coefficient resistor
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neutral grounding resistor
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noninductive resistor
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noninsulated resistor
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nonlinear resistor
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panel control resistor
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parallel resistor
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pigtail resistor
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planar resistor
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positive temperature-coefficient resistor
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pot resistor
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preset resistor
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printed resistor
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protective resistor
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pull-down resistor
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pull-up resistor
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quenching resistor
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rectilinear resistor
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reference resistor
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regulating resistor
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rod resistor
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scale resistor
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semiconductor resistor
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semifixed resistor
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series resistor
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shunting resistor
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shunt resistor
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single-unit single-shaft variable resistor
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single-wound resistor
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slide variable resistor
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smoothing resistor
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spark resistor
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speedup resistor
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standard resistor
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starting resistor
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swamping resistor
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swamp resistor
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tapped resistor
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temperature-sensitive resistor
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terminating resistor
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thermally sensitive resistor
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thermal resistor
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track resistor
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transition resistor
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trimmed resistor
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trimmer resistor
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variable resistor
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voltage-controlled resistor
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voltage-dropping resistor
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voltage-sensitive resistor
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wire-wound-type resistor
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wire-wound resistor -
18 amplifier
1) усилитель2) приемник ( прямого усиления)•- acoustic amplifier
- adder amplifier
- all-pass amplifier
- all-purpose amplifier
- all-radial amplifier
- antenna amplifier
- aperiodic amplifier
- audio-distribution amplifier
- audio-frequency amplifier
- audio-video amplifier
- automatic stereophonic recording amplifier
- auxiliary amplifier
- AV-amplifier
- average power amplifier
- backward-wave amplifier
- B-amplifier
- bandpass amplifier
- base amplifier
- beam-parametric amplifier
- binaural-power amplifier
- bioelectric-potential amplifier
- bistable amplifier
- bootstrap amplifier
- branching amplifier
- bridge magnetic amplifier
- bridging amplifier
- broadband amplifier
- broadcasting amplifier
- buck-boost amplifier
- buffer amplifier
- bullet amplifier
- burst amplifier
- calibrated amplifier
- camera amplifier
- capacitor-coupled amplifier
- carrier amplifier
- cascade-coupled amplifier
- cascaded amplifier
- cathode-coupled amplifier
- cavity-type diode amplifier
- ceramic amplifier
- channel amplifier
- choke amplifier
- chopper-stabilized amplifier
- chroma-bandpass amplifier
- chrominance amplifier
- clamped amplifier
- class-A amplifier
- class-AB amplifier
- class-B amplifier
- class-C amplifier
- class-D amplifier
- class-E amplifier
- class-F amplifier
- clipper amplifier
- coaxial amplifier
- coherent-light amplifier
- coincidence amplifier
- cold-cathode amplifier
- color-burst amplifier
- common-collector amplifier
- common-drain amplifier
- common-emitter amplifier
- common-gate amplifier
- common-source amplifier
- compensated amplifier
- compressor amplifier
- conference amplifier
- continuous-signal amplifier
- controlled amplifier
- controlling amplifier
- convertor amplifier
- correcting-antenna amplifier
- coupling amplifier
- cross-field amplifier
- current amplifier
- dc amplifier
- dc power amplifier
- dc restoration amplifier
- deflection amplifier
- degenerate amplifier
- degenerative amplifier
- delay amplifier
- dielectric amplifier
- differential amplifier
- differentiating amplifier
- differentiation amplifier
- digital sound processor amplifier
- digital sound-field processor amplifier
- digitally-controlled amplifier
- diode amplifier
- direct resistance-coupled amplifier
- direct-communication amplifier
- distribution amplifier
- DMB-amplifier
- Doherty amplifier
- double-circuit amplifier
- double-stream amplifier
- double-tuned amplifier
- drift-compensated amplifier
- drift-corrected amplifier
- drift-free amplifier
- driver amplifier
- dual-operational amplifier
- dual-trace amplifier
- duct amplifier
- duplex amplifier
- earlike-response amplifier
- electric-organ amplifier
- electrometric amplifier
- electron-beam amplifier
- electronically-tunable amplifier
- electron-tube amplifier
- elementary amplifier
- end amplifier
- error amplifier
- error-signal amplifier
- extender amplifier
- fader amplifier
- fast-operating amplifier
- feedback amplifier
- feedforward amplifier
- ferrite amplifier
- ferromagnetic amplifier
- fiber-optic system amplifier
- field amplifier
- field-input amplifier
- filter amplifier
- final amplifier
- fixed-gain amplifier
- flat amplifier
- flat-staggered amplifier
- flip-flop amplifier
- follow-up amplifier
- forming amplifier
- forward-wave amplifier
- four-channel power amplifier
- four-stage amplifier
- frame amplifier
- frequency-selective amplifier
- functional amplifier
- gain-matched amplifier
- gain-stabilized amplifier
- galvanic amplifier
- G-amplifier
- gated amplifier
- generator amplifier
- grounded-anode amplifier
- grounded-base amplifier
- grounded-cathode amplifier
- grounded-collector amplifier
- grounded-drain amplifier
- grounded-emitter amplifier
- grounded-gate amplifier
- grounded-grid amplifier
- grounded-plate amplifier
- group amplifier
- group reception amplifier
- group transmission amplifier
- guitar amplifier
- Gunn amplifier
- half-wave amplifier
- head amplifier
- heterodyne amplifier
- Hi-Fi amplifier
- high-current power amplifier
- high-frequency amplifier
- home theater amplifier
- horizontal amplifier
- IF amplifier
- image amplifier
- image-rejecting intermediate amplifier
- IMPATT amplifier
- inductance amplifier
- input amplifier
- instrumentation amplifier
- integrated amplifier
- integrating amplifier
- intensity amplifier
- intermediate-frequency amplifier
- intermediate-power amplifier
- interphone amplifier
- inverting amplifier
- isolating amplifier
- klystron amplifier
- laser amplifier
- launch amplifier
- light amplifier
- limiter amplifier
- limiting amplifier
- line amplifier
- line frequency amplifier
- line power amplifier
- line voltage amplifier
- linear amplifier
- lin-log amplifier
- listening amplifier
- lock-in amplifier
- locomotive receiver amplifier
- logarithmic amplifier
- loud-speaking announcement amplifier
- low-frequency amplifier
- low-noise amplifier
- low-power amplifier
- luminance amplifier
- magnetic amplifier
- magnetron amplifier
- main amplifier
- maser amplifier
- master oscillator amplifier
- matched amplifier
- matrix amplifier
- measuring amplifier
- microphone amplifier
- microstrip amplifier
- microwave amplifier
- mixing amplifier
- modulated amplifier
- monaural power amplifier
- monitoring amplifier
- monolithic amplifier
- multichannel amplifier
- multistage amplifier
- narrow-band amplifier
- narrow-gate amplifier
- n-channel amplifier
- negative resistance amplifier
- negatron amplifier
- noiseless amplifier
- noise-suppressing amplifier
- noncooled amplifier
- nondegenerate amplifier
- noninverting amplifier
- nonlinear amplifier
- note amplifier
- n-stage amplifier
- operating amplifier
- operation amplifier
- optical amplifier
- optoelectronic amplifier
- output amplifier
- overdriven amplifier
- packaged amplifier
- paging amplifier
- parallel amplifier
- paramagnetic amplifier
- parametric amplifier
- paraphase amplifier
- peaked amplifier
- personal tone amplifier
- phase sensor amplifier
- photocurrent amplifier
- pip amplifier
- plasma amplifier
- playback amplifier
- plug-in amplifier
- power amplifier
- precision amplifier
- printed-circuit amplifier
- processing amplifier
- program amplifier
- pulse-distribution amplifier
- push-pull electret amplifier
- push-pull magnetic amplifier
- quadrature amplifier
- quantum amplifier
- radio-frequency amplifier
- Raman amplifier
- R-amplifier
- RC-coupled amplifier
- reactance amplifier
- read amplifier
- reception amplifier
- reciprocal amplifier
- recording amplifier
- recuperative amplifier
- reflecting amplifier
- regenerative amplifier
- remote-tuned amplifier
- repeating amplifier
- reproducing amplifier
- resistance-capacitance amplifier
- resonance amplifier
- resonant amplifier
- reversed-feedback amplifier
- RF-amplifier
- rotary amplifier
- rotating amplifier
- running wave lamp amplifier
- saturated amplifier
- selective amplifier
- self-feedback amplifier
- sense amplifier
- separate amplifier
- series amplifier
- sharpener amplifier
- SHF-amplifier
- signal-shaping amplifier
- simplest amplifier
- simplex amplifier
- single-ended amplifier
- single-frequency amplifier
- single-section amplifier
- single-sideband amplifier
- single-sided amplifier
- single-stage amplifier
- single-step amplifier
- single-tuned amplifier
- slicer amplifier
- solid-state amplifier
- sound frequency amplifier
- source-follower amplifier
- speech amplifier
- square-low amplifier
- square-wave amplifier
- stabilized amplifier
- stable amplifier
- stagger-tuned amplifier
- stereo/mono power amplifier
- straight amplifier
- strip-line amplifier
- studio amplifier
- subscriber amplifier
- Suhl amplifier
- summing amplifier
- super-recuperative amplifier
- supersonic amplifier
- surface-acoustic-wave amplifier
- sweep amplifier
- tandem amplifier
- tapered amplifier
- telephone-repeater amplifier
- terminal amplifier
- TFT-amplifier
- threshold amplifier
- time-shared amplifier
- track-and-hold amplifier
- transceiving amplifier
- transferred-electron amplifier
- transformer amplifier
- transformer-coupled amplifier
- transimpedance amplifier
- transistor amplifier
- transmission-type amplifier
- transmitter amplifier
- traveling wave amplifier
- tuned amplifier
- tunnel diode amplifier
- TV-antenna amplifier
- two-channel playback amplifier
- two-step amplifier
- two-way amplifier
- ultralinear amplifier
- unloading amplifier
- untapered amplifier
- utility video amplifier
- vacuum-tube amplifier
- valve amplifier
- variable transmitter amplifier
- video amplifier
- video-frequency amplifier
- voltage amplifier
- voltage-controlled amplifier
- volume-limiting amplifier
- vortex amplifier
- wide-band amplifier
- writing amplifier
- X-amplifier
- X-axis amplifier
- Y-amplifier
- Y-axis amplifier
- zero-phase drift amplifierEnglish-Russian dictionary of telecommunications and their abbreviations > amplifier
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19 rating
1) номинал, номинальное значение ( параметра), номинальный предел; допустимое значение ( параметра); расчётное значение ( параметра)2) параметр; характеристика3) мн. ч. паспортные данные4) (номинальный) режим (работы)6) нормирование; хронометраж7) оценка; установление разряда; тарификация; определение8) квалификационная отметка (пилота, воздушного судна)•rating of electronic equipment — 1. требования к электронному оборудованию или электронной аппаратуре 2. класс электронного оборудования или электронной аппаратуры-
ability rating
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accuracy rating
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aircraft rating
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aircraft type rating
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American National Standards Institute rating
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antiknock rating
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arrester rating
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baler rating
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blending rating
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blocking voltage rating
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burden rating
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catalyst activity rating
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cetane rating
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composite noise rating
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contact rating
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contingency rating
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continuous load rating
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continuous periodic rating
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continuous rating
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continuous-duty rating
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current rating
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cutoff rating
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diesel locomotive rating
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duty-cycle ratings
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electrical ratings
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fault interruption rating
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filter rating
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filtration rating
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fire-resistance rating
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flight instructor rating
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fuel rating
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full-load rating
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fuse current rating
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fuse interrupting rating
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fuse voltage rating
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hazard rating
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heat rating
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high-octane rating
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instrument rating
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intermittent-duty rating
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intermittent rating
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lamp rating
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load rating
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loop rating
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low-water rating
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mileage rating
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nasal rating
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noise rating
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octane rating
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oil service rating
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one-hour rating
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organoleptic rating
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performance rating
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periodic-duty rating
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periodic rating
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pilot rating
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piston varnish rating
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ply rating
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power rating
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pressure rating
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pump vacuum rating
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rating of merit
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rating of well
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refrigerating compressor rating
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Ringelmann rating
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sediment-discharge rating
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service rating
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short-circuit rating
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short-time current rating
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short-time rating
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speaker pressure rating
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static tipping load rating
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stream discharge rating
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thermal current rating
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unit rating
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voltage rating
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wattage rating
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withstand rating -
20 Edison, Thomas Alva
SUBJECT AREA: Architecture and building, Automotive engineering, Electricity, Electronics and information technology, Metallurgy, Photography, film and optics, Public utilities, Recording, Telecommunications[br]b. 11 February 1847 Milan, Ohio, USAd. 18 October 1931 Glenmont[br]American inventor and pioneer electrical developer.[br]He was the son of Samuel Edison, who was in the timber business. His schooling was delayed due to scarlet fever until 1855, when he was 8½ years old, but he was an avid reader. By the age of 14 he had a job as a newsboy on the railway from Port Huron to Detroit, a distance of sixty-three miles (101 km). He worked a fourteen-hour day with a stopover of five hours, which he spent in the Detroit Free Library. He also sold sweets on the train and, later, fruit and vegetables, and was soon making a profit of $20 a week. He then started two stores in Port Huron and used a spare freight car as a laboratory. He added a hand-printing press to produce 400 copies weekly of The Grand Trunk Herald, most of which he compiled and edited himself. He set himself to learn telegraphy from the station agent at Mount Clements, whose son he had saved from being run over by a freight car.At the age of 16 he became a telegraphist at Port Huron. In 1863 he became railway telegraphist at the busy Stratford Junction of the Grand Trunk Railroad, arranging a clock with a notched wheel to give the hourly signal which was to prove that he was awake and at his post! He left hurriedly after failing to hold a train which was nearly involved in a head-on collision. He usually worked the night shift, allowing himself time for experiments during the day. His first invention was an arrangement of two Morse registers so that a high-speed input could be decoded at a slower speed. Moving from place to place he held many positions as a telegraphist. In Boston he invented an automatic vote recorder for Congress and patented it, but the idea was rejected. This was the first of a total of 1180 patents that he was to take out during his lifetime. After six years he resigned from the Western Union Company to devote all his time to invention, his next idea being an improved ticker-tape machine for stockbrokers. He developed a duplex telegraphy system, but this was turned down by the Western Union Company. He then moved to New York.Edison found accommodation in the battery room of Law's Gold Reporting Company, sleeping in the cellar, and there his repair of a broken transmitter marked him as someone of special talents. His superior soon resigned, and he was promoted with a salary of $300 a month. Western Union paid him $40,000 for the sole rights on future improvements on the duplex telegraph, and he moved to Ward Street, Newark, New Jersey, where he employed a gathering of specialist engineers. Within a year, he married one of his employees, Mary Stilwell, when she was only 16: a daughter, Marion, was born in 1872, and two sons, Thomas and William, in 1876 and 1879, respectively.He continued to work on the automatic telegraph, a device to send out messages faster than they could be tapped out by hand: that is, over fifty words per minute or so. An earlier machine by Alexander Bain worked at up to 400 words per minute, but was not good over long distances. Edison agreed to work on improving this feature of Bain's machine for the Automatic Telegraph Company (ATC) for $40,000. He improved it to a working speed of 500 words per minute and ran a test between Washington and New York. Hoping to sell their equipment to the Post Office in Britain, ATC sent Edison to England in 1873 to negotiate. A 500-word message was to be sent from Liverpool to London every half-hour for six hours, followed by tests on 2,200 miles (3,540 km) of cable at Greenwich. Only confused results were obtained due to induction in the cable, which lay coiled in a water tank. Edison returned to New York, where he worked on his quadruplex telegraph system, tests of which proved a success between New York and Albany in December 1874. Unfortunately, simultaneous negotiation with Western Union and ATC resulted in a lawsuit.Alexander Graham Bell was granted a patent for a telephone in March 1876 while Edison was still working on the same idea. His improvements allowed the device to operate over a distance of hundreds of miles instead of only a few miles. Tests were carried out over the 106 miles (170 km) between New York and Philadelphia. Edison applied for a patent on the carbon-button transmitter in April 1877, Western Union agreeing to pay him $6,000 a year for the seventeen-year duration of the patent. In these years he was also working on the development of the electric lamp and on a duplicating machine which would make up to 3,000 copies from a stencil. In 1876–7 he moved from Newark to Menlo Park, twenty-four miles (39 km) from New York on the Pennsylvania Railway, near Elizabeth. He had bought a house there around which he built the premises that would become his "inventions factory". It was there that he began the use of his 200- page pocket notebooks, each of which lasted him about two weeks, so prolific were his ideas. When he died he left 3,400 of them filled with notes and sketches.Late in 1877 he applied for a patent for a phonograph which was granted on 19 February 1878, and by the end of the year he had formed a company to manufacture this totally new product. At the time, Edison saw the device primarily as a business aid rather than for entertainment, rather as a dictating machine. In August 1878 he was granted a British patent. In July 1878 he tried to measure the heat from the solar corona at a solar eclipse viewed from Rawlins, Wyoming, but his "tasimeter" was too sensitive.Probably his greatest achievement was "The Subdivision of the Electric Light" or the "glow bulb". He tried many materials for the filament before settling on carbon. He gave a demonstration of electric light by lighting up Menlo Park and inviting the public. Edison was, of course, faced with the problem of inventing and producing all the ancillaries which go to make up the electrical system of generation and distribution-meters, fuses, insulation, switches, cabling—even generators had to be designed and built; everything was new. He started a number of manufacturing companies to produce the various components needed.In 1881 he built the world's largest generator, which weighed 27 tons, to light 1,200 lamps at the Paris Exhibition. It was later moved to England to be used in the world's first central power station with steam engine drive at Holborn Viaduct, London. In September 1882 he started up his Pearl Street Generating Station in New York, which led to a worldwide increase in the application of electric power, particularly for lighting. At the same time as these developments, he built a 1,300yd (1,190m) electric railway at Menlo Park.On 9 August 1884 his wife died of typhoid. Using his telegraphic skills, he proposed to 19-year-old Mina Miller in Morse code while in the company of others on a train. He married her in February 1885 before buying a new house and estate at West Orange, New Jersey, building a new laboratory not far away in the Orange Valley.Edison used direct current which was limited to around 250 volts. Alternating current was largely developed by George Westinghouse and Nicola Tesla, using transformers to step up the current to a higher voltage for long-distance transmission. The use of AC gradually overtook the Edison DC system.In autumn 1888 he patented a form of cinephotography, the kinetoscope, obtaining film-stock from George Eastman. In 1893 he set up the first film studio, which was pivoted so as to catch the sun, with a hinged roof which could be raised. In 1894 kinetoscope parlours with "peep shows" were starting up in cities all over America. Competition came from the Latham Brothers with a screen-projection machine, which Edison answered with his "Vitascope", shown in New York in 1896. This showed pictures with accompanying sound, but there was some difficulty with synchronization. Edison also experimented with captions at this early date.In 1880 he filed a patent for a magnetic ore separator, the first of nearly sixty. He bought up deposits of low-grade iron ore which had been developed in the north of New Jersey. The process was a commercial success until the discovery of iron-rich ore in Minnesota rendered it uneconomic and uncompetitive. In 1898 cement rock was discovered in New Village, west of West Orange. Edison bought the land and started cement manufacture, using kilns twice the normal length and using half as much fuel to heat them as the normal type of kiln. In 1893 he met Henry Ford, who was building his second car, at an Edison convention. This started him on the development of a battery for an electric car on which he made over 9,000 experiments. In 1903 he sold his patent for wireless telegraphy "for a song" to Guglielmo Marconi.In 1910 Edison designed a prefabricated concrete house. In December 1914 fire destroyed three-quarters of the West Orange plant, but it was at once rebuilt, and with the threat of war Edison started to set up his own plants for making all the chemicals that he had previously been buying from Europe, such as carbolic acid, phenol, benzol, aniline dyes, etc. He was appointed President of the Navy Consulting Board, for whom, he said, he made some forty-five inventions, "but they were pigeonholed, every one of them". Thus did Edison find that the Navy did not take kindly to civilian interference.In 1927 he started the Edison Botanic Research Company, founded with similar investment from Ford and Firestone with the object of finding a substitute for overseas-produced rubber. In the first year he tested no fewer than 3,327 possible plants, in the second year, over 1,400, eventually developing a variety of Golden Rod which grew to 14 ft (4.3 m) in height. However, all this effort and money was wasted, due to the discovery of synthetic rubber.In October 1929 he was present at Henry Ford's opening of his Dearborn Museum to celebrate the fiftieth anniversary of the incandescent lamp, including a replica of the Menlo Park laboratory. He was awarded the Congressional Gold Medal and was elected to the American Academy of Sciences. He died in 1931 at his home, Glenmont; throughout the USA, lights were dimmed temporarily on the day of his funeral.[br]Principal Honours and DistinctionsMember of the American Academy of Sciences. Congressional Gold Medal.Further ReadingM.Josephson, 1951, Edison, Eyre \& Spottiswode.R.W.Clark, 1977, Edison, the Man who Made the Future, Macdonald \& Jane.IMcN
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