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Qu'est-ce (qui) est RCA Photophone - définition
RCA Photophone
![](https://commons.wikimedia.org/wiki/Special:FilePath/"RCA Photophone" ad in The Film Daily, Jan-Jun 1929 (page 1313 crop).jpg?width=200)
.jpg?width=200 "Magazine ad insert introducing RCA Photophone, 1928")
SHOW ACTIVE
RCA Photophone System
RCA Photophone was the trade name given to one of four major competing technologies that emerged in the American film industry in the late 1920s for synchronizing electrically recorded audio to a motion picture image. RCA Photophone was an optical sound, "variable-area" film exposure system, in which the modulated area (width) corresponded to the waveform of the audio signal.
RCA
![Company logo in 1921 stressed its leadership in international communication.<ref>[https://babel.hathitrust.org/cgi/pt?id=njp.32101051572624&view=1up&seq=538 Radio Corporation of America advertisement], ''The Wireless Age'', August 1921, page 4.</ref>](https://commons.wikimedia.org/wiki/Special:FilePath/1921 Radio Corporation of America (Worldwide Wireless) logo.jpg?width=200 "Company logo in 1921 stressed its leadership in international communication.<ref>[https://babel.hathitrust.org/cgi/pt?id=njp.32101051572624&view=1up&seq=538 Radio Corporation of America advertisement], ''The Wireless Age'', August 1921, page 4.</ref>")
![Illustration of how a fully built RCA Radio Central facility at [[Rocky Point, Long Island]], New York would have appeared. Only two of the twelve "antenna spokes" were actually built.<ref>[https://babel.hathitrust.org/cgi/pt?id=coo1.ark:/13960/t88g95j7b&view=1up&seq=360 ''The Book of Radio''] by Charles William Taussig, 1922, page 320.</ref>](https://commons.wikimedia.org/wiki/Special:FilePath/Proposed RCA Radio Central facility at Rocky Point, Long Island, New York.jpg?width=200 "Illustration of how a fully built RCA Radio Central facility at [[Rocky Point, Long Island]], New York would have appeared. Only two of the twelve \"antenna spokes\" were actually built.<ref>[https://babel.hathitrust.org/cgi/pt?id=coo1.ark:/13960/t88g95j7b&view=1up&seq=360 ''The Book of Radio''] by Charles William Taussig, 1922, page 320.</ref>")
![RCA Victor Building 17]] is one of the few remaining buildings in [[Camden, New Jersey]] of the dozens that once housed the vast [[Victor Talking Machine Company]]/[[RCA Victor]] manufacturing complex.](https://commons.wikimedia.org/wiki/Special:FilePath/RCA Nipper Camden NJ A.JPG?width=200 "RCA Victor Building 17]] is one of the few remaining buildings in [[Camden, New Jersey]] of the dozens that once housed the vast [[Victor Talking Machine Company]]/[[RCA Victor]] manufacturing complex.")
![method]] was developed prior to [[helical scan]]ning, used in commercial and home tape machines.</ref>](https://commons.wikimedia.org/wiki/Special:FilePath/RCA Video-Aufzeichnungsgerät.jpg?width=200 "method]] was developed prior to [[helical scan]]ning, used in commercial and home tape machines.</ref>")
![Big Spring]], [[Texas]] (2004 photograph)</ref>](https://commons.wikimedia.org/wiki/Special:FilePath/Revised RCA emblem from Big Spring, TX, Museum.jpg?width=200 "Big Spring]], [[Texas]] (2004 photograph)</ref>")
![[[David Sarnoff]] in 1922](https://commons.wikimedia.org/wiki/Special:FilePath/ DavidSarnoff 1922.jpg?width=200 "[[David Sarnoff]] in 1922")
![Edwin Armstrong]] at RCA](https://commons.wikimedia.org/wiki/Special:FilePath/ Edwin Armstrong at blackboard.jpg?width=200 "Edwin Armstrong]] at RCA")
![BMG]] after it purchased [[RCA Records]] from GE.](https://commons.wikimedia.org/wiki/Special:FilePath/ RCA original logo.png?width=200 "BMG]] after it purchased [[RCA Records]] from GE.")
![RCA Pavilion at the [[1964 New York World's Fair]]](https://commons.wikimedia.org/wiki/Special:FilePath/ RCA Pavilion.jpg?width=200 "RCA Pavilion at the [[1964 New York World's Fair]]")
![RCA Model RC-350-A (1938) radio, made of [[Catalin]] and [[Bakelite]]](https://commons.wikimedia.org/wiki/Special:FilePath/ RCA Model RC-350-A (1938).jpg?width=200 "RCA Model RC-350-A (1938) radio, made of [[Catalin]] and [[Bakelite]]")
![RCA 44-BX Bi-Directional Velocity [[Microphone]].](https://commons.wikimedia.org/wiki/Special:FilePath/ RCA 44-BX Bi-Directional Velocity Microphone.jpg?width=200 "RCA 44-BX Bi-Directional Velocity [[Microphone]].")
![Victor Talking Machine Company's [[His Master's Voice]] logo with [[Nipper]] (1921).](https://commons.wikimedia.org/wiki/Special:FilePath/ VictorTalkingLogo.jpg?width=200 "Victor Talking Machine Company's [[His Master's Voice]] logo with [[Nipper]] (1921).")
![[[RCA Victor Red Seal Records]] label, late 1930s](https://commons.wikimedia.org/wiki/Special:FilePath/ Feodor Chaliapin - Song of the Flea - Victor 14901B.jpg?width=200 "[[RCA Victor Red Seal Records]] label, late 1930s")
![[[Arthur Fiedler]] demonstrates the new RCA Victor [[45rpm]] player and record in February 1949.](https://commons.wikimedia.org/wiki/Special:FilePath/ RCA 45 rpm phonograph and record Arthur Fiedler 1949.JPG?width=200 "[[Arthur Fiedler]] demonstrates the new RCA Victor [[45rpm]] player and record in February 1949.")
![[[RCA Studio B]] recording studio in [[Nashville, Tennessee]]; known in the 1960s for being part of the [[Nashville sound]].](https://commons.wikimedia.org/wiki/Special:FilePath/ RCAStudioB Console.jpg?width=200 "[[RCA Studio B]] recording studio in [[Nashville, Tennessee]]; known in the 1960s for being part of the [[Nashville sound]].")
![[[Vladimir K. Zworykin]] with an early experimental TV](https://commons.wikimedia.org/wiki/Special:FilePath/ Zworykin kinescope 1929.jpg?width=200 "[[Vladimir K. Zworykin]] with an early experimental TV")
![Grace Bradt and [[Eddie Albert]] in a 1936 NBC television program ''The Honeymooners-Grace and Eddie Show'' using an early RCA camera.](https://commons.wikimedia.org/wiki/Special:FilePath/ Grace Brandt Eddie Albert Grace and Eddie The Honeymooners Show 1937.JPG?width=200 "Grace Bradt and [[Eddie Albert]] in a 1936 NBC television program ''The Honeymooners-Grace and Eddie Show'' using an early RCA camera.")
![test pattern]] created by RCA in 1939](https://commons.wikimedia.org/wiki/Special:FilePath/ RCA Indian Head test pattern.JPG?width=200 "test pattern]] created by RCA in 1939")
![Wolfsonian–Florida International University]] center in [[Miami]], Florida.](https://commons.wikimedia.org/wiki/Special:FilePath/ RCA Victor TRK 12 (1939), Wolfsonian-FIU, Miami, Florida, USA - 20130910.jpg?width=200 "Wolfsonian–Florida International University]] center in [[Miami]], Florida.")
![[[RCA 630-TS]], the first mass-produced television set, sold in 1946–1947](https://commons.wikimedia.org/wiki/Special:FilePath/ RCA 630-TS Television.jpg?width=200 "[[RCA 630-TS]], the first mass-produced television set, sold in 1946–1947")
![Orthicon]] TV Camera Tube](https://commons.wikimedia.org/wiki/Special:FilePath/ Image-orthicon-tube.png?width=200 "Orthicon]] TV Camera Tube")
![[[RCA Studio II]] home video game console (1977)](https://commons.wikimedia.org/wiki/Special:FilePath/ RCA-Studio-II-FL.jpg?width=200 "[[RCA Studio II]] home video game console (1977)")
![RCA [[Colortrak]] TV set, using the CTC101 chassis, c. 1980](https://commons.wikimedia.org/wiki/Special:FilePath/ Rcactc101.jpg?width=200 "RCA [[Colortrak]] TV set, using the CTC101 chassis, c. 1980")
![[[RCA connector]] used for audio and video.](https://commons.wikimedia.org/wiki/Special:FilePath/ Composite-cables.jpg?width=200 "[[RCA connector]] used for audio and video.")
![[[RCA 1802]], sometimes known as the COSMAC, an 8-bit [[CMOS]] [[microprocessor]] from 1976.](https://commons.wikimedia.org/wiki/Special:FilePath/ KL RCA 1802.jpg?width=200 "[[RCA 1802]], sometimes known as the COSMAC, an 8-bit [[CMOS]] [[microprocessor]] from 1976.")
A NOW DEFUNCT AMERICAN ELECTRONICS COMPANY ESTABLISHED IN 1969
Radio Corporation of America; RCA Corporation; Vport; Radio corporation of america; Rca; Radiotron; The RCA Corporation; The Radio Corporation of America; RCA Music; R.C.A.; Major Defense Systems Division; RCA TRK-5; RCA Corporate Engineering Services; RCA Engineer; RCA Manufacturing Company, Inc.; RCA Manufacturing; RCA Manufacturing Company
¦ abbreviation
1. Central African Republic (international vehicle registration). [from Fr. Republique Centrafricaine.]
2. (in the US) Radio Corporation of America.
3. (in the UK) Royal College of Art.
RCA Type 77-DX microphone
![[[Larry King]] with [[Vladimir Putin]] in 2000](https://commons.wikimedia.org/wiki/Special:FilePath/Vladimir Putin with Larry King.jpg?width=200 "[[Larry King]] with [[Vladimir Putin]] in 2000")
RIBBON MICROPHONE MANUFACTURED BY RCA CORPORATION
RCA 77DX; RCA 77-DX; RCA Type 77-DX Microphone
The RCA Type 77-DX microphone is a poly-directional ribbon microphone, or pressure-gradient microphone, introduced by the RCA Corporation in 1954. It was preceded by the Type 77-D introduced in 1948.
