" TELEVISION LINE BY LINE " 1960s TELEVISION TECHNOLOGY EDUCATIONAL ANIMATED FILM XD75784
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- Опубликовано: 9 апр 2023
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“Television Line by Line” (1969) is a color illustrated, informational film based on the German language film Zeile Für Zeile (made in the Federal Republic of Germany) that details and demonstrates the basic principles of how pictures are formed on the TV screen. Distributed in the United States by the International Film Bureau Inc of Chicago, Illinois - the film was originally made by FWU Institut für Film und Bild in Wissenschaft und Unterricht in Grünwald, Germany.
Opening credits (0:08). Illustration of retro, late 1960s movie camera and tv set (0:25). Illustration of photoelectric cell, meter, battery demonstrating photo effect, interaction between lights and the resistance of a semiconductor - light changes as the arrow on the meter oscillates (0:47). Illustration of light meter, moves around image on screen to detect rate of bright and dark light (1:43). Light meter records light on sepia-tone image of perhaps 1930s automobile in empty field (2:05). White curve appears under image, records deflection of the pointer a.k.a the light intensity of the image (2:21). Paint brush follows the line to create abstract recreation of image, camera zooms out to reveal original photo made up of black and white stripes (2:41). Car from original image slowly movies, cloud of exhaust comes out of back pipe as it drives along rural tree-lined road (3:30). Illustrated 1960s television camera, perhaps emulating RCA TK60, interior of camera cube (3:43). Close-up of vidicon tube, interior anode and cathode (4:04). Breakdown of how lens of TV camera projects image, breakdown of screens inside the lens (4:25). Heated cathode at other end of vidicon tube, electrons bounce out of red square and form beam which can be moved according to magnetic field (5:34). Scanning pattern: electron beam moves in lines on screen according to the magnetic field (6:12). Close-up of signal plate with columns of +, electron beam scans the column (6:43). Image of the vidicon tube and the electrical current flowing between the cathode condensers and the battery (7:25). Television signal: illustration of recording strip with white curve indicating light and dark areas (7:45). Profile of illustrated RCA TK60, white curve extends out of camera on bottom right corner (8:05). Antenna, white beams representing electromagnetic waves oscillate out of antenna strip (8:09). Waves overlaid receiver antenna (8:19). Cross hatch diagram of television tv picture cube - heated cathode releases electrons, beam formed that projects onto fluorescent screen (8:27). Incoming television signal fed to the control electrode (9:28). Magnetic field from electromagnets moves beam up and down along fluorescent screen (9:54). Front view of illustrated 1960s retro tv set, sepia-tone image of automobile slowly appears on screen (10:08). Illustration of NASA Telstar 1 satellite in space (10:40).
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This film is part of the Periscope Film LLC archive, one of the largest historic military, transportation, and aviation stock footage collections in the USA. Entirely film backed, this material is available for licensing in 24p HD, 2k and 4k. For more information visit www.PeriscopeFilm.com
Teşekkürler.
Thanks very, very much. Donations like this make it possible for us to save more rare and endangered films!
I love how these old-fashioned documentaries can explain complex topics with outstanding clarity and brevity.
Great explanation of the basics of analog television. It's so easy these days either oversimplify or get so bogged down in details that you lose the audience in short time. Thank you for posting these old films and I always look forward to seeing them.
They got a few things wrong, though. For example, in the picture tube, the video signal is actually sent to the cathode. The control grid is used for blanking between lines and frames. In a colour tube, the control grids are where the colour signals get applied, but this film was only describing B&W TV. And this was very simplified. There was no mention of the studio and control room equipment, nor synchronization.
Future generations will value your restorations. Thank you so much for preserving these treasures.
Informative . 😊
I never knew that's how it worked.
I always wonder how these films get so beat up.
One problem is degradation of the film media. They weren't designed for long-term storage and the mechanical process of film running through a projector causes scratches. Thankfully, we have archivists like Periscope Films trying to preserve as much of these old films and making digital copies!
I’m sure one day AI will get to the point where we can restore these completely back to 100% too.
Hi Jim, thanks for the comment and for being a sub. Films that we collect tend to have wear from use in classrooms and sometimes they have water damage or heat damage too! Then there is the issue with the color, which has often faded to red and has to be restored (see our video about rescuing a film collection to see how that is done). Sometimes film stocks also have shrunk from age, or have other problems like warp or what is known as "vinegar syndrome". We are dealing with many films now that are in the 100 year old category, or thereabouts.
@@justinedward4742 AI cannot undo physical damage
Always wondered how a analog tv camera worked.
Is that Bonnie and Clyde getting away?
and they never mentioned how racist the technology is and apologized for it, etc... imagine that...
Things sure have changed..
Do what?
Muh satellites
Kids think us old farts (boomers) are stupid. They need more than an ESG degree to even start to understand this technology.
Im sorry boomer but i understood the entire video😂 not all of us lack brain cells like your kids do