VACUUM TUBE ELECTRONICS AT WORK 1940s WESTINGHOUSE PROMOTIONAL FILM 71552
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- เผยแพร่เมื่อ 19 ต.ค. 2018
- “Electronics at Work” is the title of this black-and-white film produced by Westinghouse, and focuses on the role of electronics during World War II. Mark 00:48 introduces the viewer to a diode (a specialized electronic component with two electrodes - the anode and the cathode - separated by a vacuum). At mark 01:35, the film offers further illustration as to the process. When the cathode is heated, negative electrons fly to the positive anode. This “new kind of switch,” the narrator explains at mark 02:15, is explained in great detail via diagrams, as is its use of a rectifier, which converts alternating current (AC), which periodically reverses direction, to direct current (DC) The applications of rectification are plentiful, it is said at mat 03:13, and include electric railways, electro-plating operations, use in steel mills, and in airpower. Diodes can also be used to amplify, it is said at mark 07:08, via a placement of a grid in the center of the diode, which can enhance communication. Further functions of a diode include generation of alternating current (mark 09:13), control the flow of power to a machine (mark 13:07), the ability to transform light into current (mark 14:50), and the ability to transform current into light (mark 16:23). “The cathode ray tube is an example of this application,” the narrator explains. (A CRT uses one or more electron guns and a phosphorescent screen to view images). A CRT was used in early television, it is noted at mark 16:37, and also as an x-ray tube. “Doctors can now study human internal organs … or photograph them,” it is explained. Each way is explained in detail and illustrated by a variety of graphics. Despite the detail devoted to the topic, the narrator notes at mark 18:25 that there are countless other uses. “So many and so varied are the applications of electronics that a single film like this can only mention one in a thousand. We haven’t even mentioned, for instance, radar, the electronic development that helped save Britain during the decisive weeks of the German aerial blitz … Whenever Hitler’s bombers attacked, at whatever altitude, from whatever direction, British Interceptors were waiting for them.” As an array of tubes fill the screen, the narrator concludes at mark 19:41: “Yes the electronic tube, in essence, is only a switch, but what a switch! It rectifies, amplifies, generates, controls, transforms light into electricity and back into light again. These tubes that look so mysterious are essentially simple … in the world of today they’re helping us win a war. In the world of tomorrow, they bring new levels of achievement, comfort, and security.”
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
They probably never even thought people would be watching this on their telephone
Probably the two most important inventions of the 20th century was the vacuum tube (Thermonic valve) in 1906 which led to modern electronics like radio, television, radar and the earliest electronic computers. Then in 1947 the transistors which led to the amazing technology we have today. The diode tube invented in 1903.
The sound alone brings back so many memories
It’s amazing how well they made things back then
Ever since the 1990s everything is cheap and disposable I restore old tube radios and amplifiers and try to use nos USA military electronics since they had better quality
you can still get some good quality components comparable to NOS military stuff, they are however usually hard to get and very expensive.
Thanks, I love old films like this!
I love these films too!
You can be SURE, I'm gonna watch this. 👍😊👍 I had a LOT of family working at Westinghouse. For decades "G.E." was a four letter word. 😂
the birth of modern technology
This video is amazing and inspiring.
Back around 1973, I worked at a paper mill and the motor speed controls still used the tubes in this old film
I’m only 43 and had a old Tube tv and my dad showed me how to fix them and how tubes worked ,that tv would probably work today and it also kept my bedroom warm in cold winter nights
Awesome
Glad you like this -- it's an obscure one for sure! Love our channel? Help us save and post more orphaned films! Support us on Patreon: www.patreon.com/PeriscopeFilm Even a really tiny contribution can make a difference.
Shocking!
best
interesting to the XXI e era guy like me ;)
10:10 "The first time a radio transmitter was used for large-scale public entertainment."
*starts reading the election results*
Some things never change.
The 1920 election WAS IN FACT the first "breaking news" broadcast in history.
America was technologically and industrially so far ahead of the world not so long ago. My, what greed to save a few pennies here and there has done.
The US had an edge because it was not physically destroyed by war the way European countries and Japan were. Those countries rebuilt new factories in the 1950's and 60's (sometimes with American help). Their newer factories then gave them an edge in production of autos and other things.
Hi,i need your permission to translate your electronics related videos in to Tamil. Please consider my request.
transistors in 1947: I'm about to end this whole company
As if transistors came from nowhere to completely replace tubes. You seem to ignore that vacuum tube equipment was used to create and refine the transistor. You also ignore that the early devices were very unreliable and that tubes powered most consumer devices into the late 1960's. Most early transistor audio sounded horrible compared with tubes also. Not until the 1970's did solid state equipment become a viable contender in the hifi stereo realm.
How was the transistor supposed to "end" Westinghouse?!? FFS, Westinghouse themselves MADE transistors and it was their TUBE division that did so: www.semiconductormuseum.com/Transistors/LectureHall/JoeKnight/JoeKnight_EarlyPowerTransistorHistory_Westinghouse_Index.htm
@@hyperluminalreality1 And most people STILL use vacuum tubes daily (several times a day, usually) The "magnetron" is a vacuum tube that is the main part of the microwave oven!
Made in USA way back then!
Invented by the British in 1904.
@@51WCDodge You forgot about Edison putting the effect back on the radar! - And yes I am aware of others working on the light bulb concurrently and before Edison.
@@51WCDodge The OP said MADE. Not invented. Westinghouse was an American company that made shit in the US for the US market. British companies likewise made shit in the UK for the British market. We used British inventions, Yep! The English likewise used American inventions too Yep! The OP's point was that shit was still made HERE for US. The Brits used to be able to say the same for THEM too. Now we ALL get our shit from China no matter WHERE it was invented.
@@wdmm94 Edison merely NOTICED it, he did NOTHING WITH it. Others did.
@@jamesslick4790 Which is why it is called the Edison Effect and is how I labeled it in my comment. Interestingly enough, Flemming could experiment with this because Edison patented this for a use and exhibited it at an exposition; wherein several Edison Effect bulbs were brought back to England and a paper published about it by a William Preece.