Television that relies on a scanning device to display images
"Televisor" redirects here. Not to be confused with a television set, called a "televisor" in several languages.
Mechanical television or mechanical scan television is an obsolete television system that relies on a mechanical scanning device, such as a rotating disk with holes in it or a rotating mirror drum, to scan the scene and generate the video signal, and a similar mechanical device at the receiver to display the picture. This contrasts with vacuum tube electronic television technology, using electron beam scanning methods, for example in cathode-ray tube (CRT) televisions. Subsequently, modern solid-state liquid-crystal displays (LCD) and LED displays are now used to create and display television pictures.
Mechanical-scanning methods were used in the earliest experimental television systems in the 1920s and 1930s. One of the first experimental wireless television transmissions was by John Logie Baird on October 2, 1925, in London. By 1928 many radio stations were broadcasting experimental television programs using mechanical systems. However the technology never produced images of sufficient quality to become popular with the public. Mechanical-scan systems were largely superseded by electronic-scan technology in the mid-1930s, which was used in the first commercially successful television broadcasts which began in the late 1930s in Great Britain. In the U.S., experimental stations such as W2XAB in New York City began broadcasting mechanical television programs in 1931 but discontinued operations on February 20, 1933, until returning with an all-electronic system in 1939.
A mechanical television receiver was also called a televisor.
and 25 Related for: Mechanical television information
Mechanicaltelevision or mechanical scan television is an obsolete television system that relies on a mechanical scanning device, such as a rotating disk...
reproducer) marked the start of the end for mechanical systems as the dominant form of television. Mechanicaltelevision, despite its inferior image quality and...
first practical transmissions of moving images over a radio system used mechanical rotating perforated disks to scan a scene into a time-varying signal that...
and display of moving visual media. Video was first developed for mechanicaltelevision systems, which were quickly replaced by cathode-ray tube (CRT) systems...
of color television standards was an important part of the history and technology of television. Transmission of color images using mechanical scanners...
interference actions. 1924: John Logie Baird demonstrates a semi-mechanicaltelevision system with the transmission of moving silhouette images in England;...
and broadcast pre World War II television systems were tested. The first ones were mechanical based (mechanicaltelevision) and of very low resolution,...
fundamental component in mechanicaltelevision, and thus the first televisions, through the 1920s and 1930s. The device is a mechanically spinning disk of any...
experimental station W2XAB (now WCBS-TV), it was broadcast on a mechanicaltelevision system. The series was first announced in the September 17, 1932...
Baird invented some of the first experimental television systems. In 1924 he developed a mechanicaltelevision system to transmit moving images by means of...
Animal Mechanicals (French: Les Super Mécanimaux) is a Canadian CGI-animated preschool television series created by Jeff Rosen. Produced by Halifax Film...
receive television until the late 1950s and early 1960s. Although 180-line cathode ray tube receivers were manufactured in France in 1936, a mechanical scanning...
February 1924, he demonstrated to the Radio Times that a semi-mechanical analogue television system was possible by transmitting moving silhouette images...
experimental television stations Narrow-bandwidth televisionTelevision systems before 1940 WRGB WNBC WCBS-TV KCBS-TV BBC / BBC TelevisionTelevision systems...
of mechanicaltelevisions and early terrestrial television broadcasts. Sanabria was the builder and engineer of WCFL, the first mechanicaltelevision station...
device relied upon the Nipkow disk and thus became known as the mechanicaltelevision. It formed the basis of experimental broadcasts done by the British...
output and defines a 2K format with a resolution of 2048 × 1080. For television and consumer media, the dominant resolution in the same class is 1920 × 1080...
Scophony was a sophisticated mechanicaltelevision system developed in Britain by Scophony Limited. A black and white image was produced by an early form...
lose a tooth. A mechanical bull riding competition serves as a plot point in the television show Patriot Although injuries from mechanical bulls are relatively...
This is a list of television-related events that occurred prior to 1925. Table of years in television Sutton, Henry (7 November 1890). "Tele-photography"...
stands for progressive, so the two must not be confused. The ATSC digital television standards define 480p with 640×480p (4:3) pixel resolutions, at 24, 30...
l'ORTF in 1964 and finally, Télévision Française 1 (TF1) in 1975. The first public demonstration of a 30-line mechanicaltelevision took place on 14 April...
A mechanical floor, mechanical penthouse, mechanical layer or mechanical level is a story of a high-rise building that is dedicated to mechanical and...