Braun HF 1, Germany, 1958 A modern 82" (208 cm) LCD television.An American family watching television in the 1950s.Television antenna on a rooftop

Discover great deals on the many hard to find and one of a kind items available only on ebay!


This site contains sponsored affiliate links.

Television

Television is a telecommunication system for broadcasting and receiving moving pictures and sound over a distance. The term has come to refer to all the aspects of television programming and transmission as well. more...

HomeHome
ComicsComics
ComputersComputers
ElectronicsElectronics
MoviesMovies
TelevisionTelevision
Aeon FluxAeon Flux
AngelAngel
Band of BrothersBand of Brothers
Battlestar GalacticaBattlestar Galactica
Buffy the Vampire SlayerBuffy the Vampire Slayer
Dark ShadowsDark Shadows
Doctor WhoDoctor Who
FireflyFirefly
Inspector GadgetInspector Gadget
InuyashaInuyasha
Knight RiderKnight Rider
Looney TunesLooney Tunes
LostLost
Lost in SpaceLost in Space
MacGyverMacGyver
My So-Called LifeMy So-Called Life
Quantum LeapQuantum Leap
RobotechRobotech
SmallvilleSmallville
SopranosSopranos
South ParkSouth Park
Star BlazersStar Blazers
Star TrekStar Trek
Tranzor ZTranzor Z
Twilight ZoneTwilight Zone
VoltronVoltron
YamatoYamato
ToysToys
Video GamesVideo Games


History

The development of television technology can be partitioned along two lines: those developments that depended upon both mechanical and electronic principles, and those which are purely electronic. From the latter descended all modern televisions, but these would not have been possible without discoveries and insights from the mechanical systems.

The word television is a hybrid word, created from both Greek and Latin. Tele- is Greek for "far", while -vision is from the Latin visio, meaning "vision" or "sight". It is often abbreviated as TV or the telly.

Electromechanical television

The German student Paul Gottlieb Nipkow proposed and patented the first electromechanical television system in 1885. Nipkow's spinning disk design is credited with being the first television image rasterizer. However, it wasn't until 1907 that developments in amplification tube technology made the design practical. Meanwhile, Constantin Perskyi had coined the word television in a paper read to the International Electricity Congress at the International World Fair in Paris on August 25, 1900. Perskeyi's paper reviewed the existing electromechanical technologies, mentioning the work of Nipkow and others.

In 1911, Boris Rosing and his student Vladimir Kosma Zworykin achieved a television system that used a mechanical mirror-drum scanner to transmit, in Zworykin's words, "very crude images" over wires to the electronic Braun tube (cathode ray tube) in the receiver. Moving images were not possible because, in the scanner, "the sensitivity was not enough and the selenium cell was very laggy." Zworykin later went to work for RCA to build a purely electronic television, the design of which was eventually found to violate patents by Philo Taylor Farnsworth.

On March 25, 1925, Scottish inventor John Logie Baird gave a demonstration of televised silhouette images at Selfridge's Department Store in London. But if television is defined as the transmission of live, moving, half-tone (grayscale) images, and not silhouette or still images, Baird achieved this privately on October 2, 1925, and gave the world's first public demonstration of a working television system to members of the Royal Institution and a newspaper reporter on January 26, 1926 at his laboratory in London. Unlike later electronic systems with several hundred lines of resolution, Baird's vertically scanned image, using a scanning disc embedded with a double spiral of lenses, had only 30 lines, just enough to reproduce a recognizable human face.

In 1928 Baird's company (Baird Television Development Company / Cinema Television) broadcast the first transatlantic television signal, between London and New York, and the first shore to ship transmission. He also demonstrated an electromechanical colour, infrared (dubbed "Noctovision"), and stereoscopic television, using additional lenses, disks and filters. In parallel he developed a video disk recording system dubbed "Phonovision"; a number of the Phonovision recordings, dating back to 1927, still exist. In 1929 he became involved in the first experimental electromechanical television service in Germany. In 1931 he made the first live transmission, of the Epsom Derby. In 1932 he demonstrated ultra-short wave television. Baird's electromechanical system reached a peak of 240 lines of resolution on BBC television broadcasts in 1936, before being discontinued in favor of a 405 line all-electronic system.

In the U.S., Charles Francis Jenkins was able to demonstrate on June 13, 1925, the transmission of the silhouette image of a toy windmill in motion from a naval radio station to his laboratory in Washington, using a lensed disc scanner with 48 lines per picture, 16 pictures per second. AT&T's Bell Telephone Laboratories transmitted half-tone images of transparencies in May 1925. But Bell Labs gave the most dramatic demonstration of television yet on April 7, 1927, when it field tested reflected-light television systems using small-scale (2 by 2.5 inches) and large-scale (24 by 30 inches) viewing screens over a wire link from Washington to New York City, and over-the-air broadcast from Whippany, New Jersey. The subjects, which included Secretary of Commerce Herbert Hoover, were illuminated by a flying spot beam and scanned by a 50-aperture disc at 16 pictures per second.

Electronic television

Although the discoveries of Nipkow, Rosing, Baird and others were extraordinary, little of their technology is used in modern television. By 1934, all electromechanical television systems were outmoded, although electromechanical broadcasts continued on some stations until 1939.

A.A. Campbell-Swinton wrote a letter to Nature on the 18 June 1908 describing his concept of electronic television using the cathode ray tube, which had been invented in 1897 by the German physicist and Nobel prize winner Karl Ferdinand Braun. He proposed using an electron beam in both the camera and the receiver, which could be steered electronically to produce moving pictures. He lectured on the subject in 1911 and displayed circuit diagrams, but no one, including Swinton, knew how to realize the design. Although his system was never built, the cathode ray tube did come to be used to display images in almost all television sets and computer monitors until the invention of the LCD panel.

A fully electronic system was first achieved by Philo Taylor Farnsworth on September 7, 1927, although the low-resolution, light-insensitive camera tube limited the image to a plate of glass painted black, with a straight line etched across it, rotated in front of a bright carbon arc lamp. Seven years later, on August 25, 1934, at the Franklin Institute in Philadelphia, Farnsworth gave the world's first public demonstration of a working, all-electronic television system, with 220 lines per picture, 30 pictures per second. Over a three week period, vaudeville acts, athletic and sports demonstrations, politicians, and hundreds of ordinary citizens were captured on Farnsworth's cameras in the open air and simultaneously shown on his receiving sets.

Read more at Wikipedia.org


[List your site here Free!]

Adventures of Wild Bill Hickok- Sealed 3 Case Rare Collection-68 Shows-18 DvdsAdventures of Wild Bill Hickok- Sealed 3 Case Rare Collection-68 Shows-18 Dvds $39.99 "The Munsters" Cast From The Tv Show - 8X10 Christmas Publicity Photo (Op-991)"The Munsters" Cast From The Tv Show - 8X10 Christmas Publicity Photo (Op-991) $8.98
Angie Dickinson In The Tv Series "Police Woman" - 8X10 Publicity Photo (Mw633)Angie Dickinson In The Tv Series "Police Woman" - 8X10 Publicity Photo (Mw633) $8.98 New ListingVintage Motorola Portable Television 8In Blonde Suitcase Tv Model 7Vt5A-New ListingVintage Motorola Portable Television 8In Blonde Suitcase Tv Model 7Vt5A- $349.99
Diana Rigg In The Tv Series "The Avengers" - 8X10 Publicity Photo (Az517)Diana Rigg In The Tv Series "The Avengers" - 8X10 Publicity Photo (Az517) $8.98 The Brady-est Brady Bunch Tv & Movie Collection! [New Dvd] Full Frame, Boxed SThe Brady-est Brady Bunch Tv & Movie Collection! [New Dvd] Full Frame, Boxed S $54.02
Huge Tv Television Season Dvd Lot Choose Your Titles Comedy Drama MoviesHuge Tv Television Season Dvd Lot Choose Your Titles Comedy Drama Movies $4.00 Whirlybirds + 70 Remastered Television Tv Episodes Dvd Collection NewWhirlybirds + 70 Remastered Television Tv Episodes Dvd Collection New $49.99
Dream Art Collection 4K Over 500 Paintings Turns Your Tv into an Art Frame TvDream Art Collection 4K Over 500 Paintings Turns Your Tv into an Art Frame Tv $24.99 Stranger Things Collectible Eddie's Guitar B.C. Rich Replica Miniature GuitarStranger Things Collectible Eddie's Guitar B.C. Rich Replica Miniature Guitar $49.99
Alf Christmas Ornament - Collectible Vintage 1980s Tv Television Sitcom 80sAlf Christmas Ornament - Collectible Vintage 1980s Tv Television Sitcom 80s $7.99 1961 Television Showroom Store Photo Appliance Tv Radio Record Player Shop Windo1961 Television Showroom Store Photo Appliance Tv Radio Record Player Shop Windo $5.98
1958 Philco Hyper Power Television T.V Htv Fold Out Advertising Brochure1958 Philco Hyper Power Television T.V Htv Fold Out Advertising Brochure $9.09 Bewitched Samantha's mother and aunts snapshot from Tv digital reprint 4x6Bewitched Samantha's mother and aunts snapshot from Tv digital reprint 4x6 $5.25
Wireless Hdmi Extender Video Transmitter Receiver Screen Mirroring Pc To TvWireless Hdmi Extender Video Transmitter Receiver Screen Mirroring Pc To Tv $26.99 to New Listing2018 Set Of 9 Limited Edition Vintage Style Mego 8" Tv Favorites Figures Moc/NibNew Listing2018 Set Of 9 Limited Edition Vintage Style Mego 8" Tv Favorites Figures Moc/Nib $315.00
Funko Pop! Tv: Sesame Street Cookie Monster #1609Funko Pop! Tv: Sesame Street Cookie Monster #1609 $15.25 Mtv Classic 80'S Tv Logo Music Television Hat Lapel Enamel Pin 1.25" NewMtv Classic 80'S Tv Logo Music Television Hat Lapel Enamel Pin 1.25" New $6.99
Tightrope 2 Case Collection Tv Shows Sealed +Rare Richard Diamond Otr 2Audio CdsTightrope 2 Case Collection Tv Shows Sealed +Rare Richard Diamond Otr 2Audio Cds $29.99 Miniature Tv for PinballMiniature Tv for Pinball $99.99
New Listing1963 Rca Bridgeport Color Tv Television Baton Cheerleaders Photo AdNew Listing1963 Rca Bridgeport Color Tv Television Baton Cheerleaders Photo Ad $14.99 Tv- Dale Robertson 4"x6" Magnet Print -Tv- Dale Robertson 4"x6" Magnet Print - $5.35
New ListingEmerson Permacolor Tv Television Football vintage 1972 Magazine Print AdNew ListingEmerson Permacolor Tv Television Football vintage 1972 Magazine Print Ad $4.99 Walker Texas Ranger The Complete Series Collection(Dvd,Seasons 1-8+Tv Movie)NewWalker Texas Ranger The Complete Series Collection(Dvd,Seasons 1-8+Tv Movie)New $59.99
Funko Pop! Jim Halpert Chase #870 Facebook Costume, The Office, Tv Television NmFunko Pop! Jim Halpert Chase #870 Facebook Costume, The Office, Tv Television Nm $16.95 The Brady-Est Brady Bunch Tv & Movie Collection! (Dvd)The Brady-Est Brady Bunch Tv & Movie Collection! (Dvd) $40.00
The Zacherley Tv Classics Collection! 20 Hours of Rare Videos on a Flash Drive!The Zacherley Tv Classics Collection! 20 Hours of Rare Videos on a Flash Drive! $34.95 Blood+ Plus Tv Anime Complete Collection Series English (Dvd, 2009) Episode 1-50Blood+ Plus Tv Anime Complete Collection Series English (Dvd, 2009) Episode 1-50 $49.96
Dick Van Dyke Tv Show Mary Tyler Moore On Set Color 8X12 Photo Television IconsDick Van Dyke Tv Show Mary Tyler Moore On Set Color 8X12 Photo Television Icons $15.25 New ListingVampire Mr. Burns The Simpsons Funko Pop! 2019 Nycc Fall Shared 825 Vinyl FigureNew ListingVampire Mr. Burns The Simpsons Funko Pop! 2019 Nycc Fall Shared 825 Vinyl Figure $16.00
New Listing1970 Magnavox Color Television Tv You're Home AdNew Listing1970 Magnavox Color Television Tv You're Home Ad $14.99 New Tiny Tv Classics Family Guy Edition Real Working Mini Television CollectibleNew Tiny Tv Classics Family Guy Edition Real Working Mini Television Collectible $14.87
Tales of Wells Fargo Tv- Dale Robertson 4"x6" Magnet Print -Tales of Wells Fargo Tv- Dale Robertson 4"x6" Magnet Print - $5.40 Original! Tiny Tv Classics Star Trek Edition Collectible Real Mini Tv Best ClipsOriginal! Tiny Tv Classics Star Trek Edition Collectible Real Mini Tv Best Clips $29.99
Vtg Hbo Patch 80s Television Memorabilia Embroidered Blue Red Tv CollectiblesVtg Hbo Patch 80s Television Memorabilia Embroidered Blue Red Tv Collectibles $14.99 New ListingFunko Pop! Vinyl: The Walking Dead - Merle Dixon (Walker) #71New ListingFunko Pop! Vinyl: The Walking Dead - Merle Dixon (Walker) #71 $79.99
Way Out Tv Show Collection 10 Episodes in Sealed case + Bonus 2 Radio Audio Cds!Way Out Tv Show Collection 10 Episodes in Sealed case + Bonus 2 Radio Audio Cds! $24.99 New Tiny Tv Classics Star Trek Edition Collectible Real Mini Tv Best ClipsNew Tiny Tv Classics Star Trek Edition Collectible Real Mini Tv Best Clips $23.99
Funko Pop! Tv Ted Lasso S2 Dani Rojas #1510 In StockFunko Pop! Tv Ted Lasso S2 Dani Rojas #1510 In Stock $13.48 Original Star Trek Classic Tv Episode Pin Collection- 79 in Series- Your ChoiceOriginal Star Trek Classic Tv Episode Pin Collection- 79 in Series- Your Choice $9.99 to
Holiday House Christmas Vntg Tv w/ Led Lights Music Movement Brand New See VideoHoliday House Christmas Vntg Tv w/ Led Lights Music Movement Brand New See Video $35.99 Thundercats Enamel Pin Retro 80s Cartoon Tv Television Hat Lapel Bag Cats Sci-fiThundercats Enamel Pin Retro 80s Cartoon Tv Television Hat Lapel Bag Cats Sci-fi $6.99
"Star Trek: Voyager" Cast From The Tv Show - 8X10 Publicity Photo (Ab-673)"Star Trek: Voyager" Cast From The Tv Show - 8X10 Publicity Photo (Ab-673) $8.98 New ListingRussian Московская ÐºÐ¾Ð½ÑÐµÑ€Ð²Ð°Ñ‚Ð¾Ñ€Ð¸Ñ 1866-1991 к 125-летию со дня основания ПрибегинаNew ListingRussian Московская ÐºÐ¾Ð½ÑÐµÑ€Ð²Ð°Ñ‚Ð¾Ñ€Ð¸Ñ 1866-1991 к 125-летию со дня основания Прибегина $145.99
8x10 Growing Pains Tv Show Glossy Photo photograph picture leonardo dicaprio leo8x10 Growing Pains Tv Show Glossy Photo photograph picture leonardo dicaprio leo $11.99 Metal Sign Applause tv show station broadcast live television sitcom on air clapMetal Sign Applause tv show station broadcast live television sitcom on air clap $12.60
Legend of the Galactic Heroes Anime Series Complete Collection + 3 MoviesLegend of the Galactic Heroes Anime Series Complete Collection + 3 Movies $94.99 12 O'Clock High Collection-Tv Show-Sealed Case-78 shows-Rare Bonus Flying G-Men12 O'Clock High Collection-Tv Show-Sealed Case-78 shows-Rare Bonus Flying G-Men $24.99
Donna Douglas 4x6 "Beverly Hillbillies" Classic TelevisionDonna Douglas 4x6 "Beverly Hillbillies" Classic Television $5.59 Ulexite Tv Rock Chunks, Television Stones - Choose Size (Optical Crystals)Ulexite Tv Rock Chunks, Television Stones - Choose Size (Optical Crystals) $7.95 to
New ListingAngel Smile Time Tv Episode Puppet Limited Edition #762 Coa Buffy VampireNew ListingAngel Smile Time Tv Episode Puppet Limited Edition #762 Coa Buffy Vampire $225.00 Batgirl Classic Tv Series CollectibleBatgirl Classic Tv Series Collectible $39.99
Sally Field In The Tv Program "Gidget" - 8X10 Publicity Photo (Fb-081)Sally Field In The Tv Program "Gidget" - 8X10 Publicity Photo (Fb-081) $8.98 New ListingFunko Pop! Tv: Stranger Things Vecna #1312 Blacklight Exclusive in Pop ProtectorNew ListingFunko Pop! Tv: Stranger Things Vecna #1312 Blacklight Exclusive in Pop Protector $12.99
Amos And Andy Tv Show *2X3 Fridge Magnet* Television Comedy Black SituationalAmos And Andy Tv Show *2X3 Fridge Magnet* Television Comedy Black Situational $8.95 New ListingColin Farrell (The Batman: Penguin) Signed 8x10 inch Original Autograph w/CoaNew ListingColin Farrell (The Batman: Penguin) Signed 8x10 inch Original Autograph w/Coa $125.00
Tiny Tv Classics - Back to the Future - Real Working Mini TvTiny Tv Classics - Back to the Future - Real Working Mini Tv $45.00 Cast Of Tv Show "Bonanza" w/ *Reprint* Autographs 8X10 Publicity Photo (Fb-511)Cast Of Tv Show "Bonanza" w/ *Reprint* Autographs 8X10 Publicity Photo (Fb-511) $8.98
Click to see more Television items at www.ebay.com
Prices current as of last update, 11/16/24 4:14pm.

Home Contact Resources Exchange Links ebay