How a Klystron Tube Works
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- Опубликовано: 28 апр 2012
- The klystron is used in television transmission, particle accelerators, and powerful radar, like that in the DEW line which defended North America from attack. Developer of this model klystron tube Rudy Dehn explains how the high powered microwave device works. Dehn and others developed a better tube at GE Schenectady. This short video is an excerpt from a full video talking about the development of the device from 1936-1976.
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When I worked in satellite communications in the early 90's, I worked with tunable klystrons. They had a cam mechanism that could adjust the size of the resonant chambers and change the frequency of the tube. The collector was also air cooled which made the units quite noisy.
Oh man that's cool! I'm just reading up on Klystrons because I came across a video showcasing the Mickelsen Safeguard complex yesterday. Interesting stuff.
This was an excellent video and a clear explanation. This guy really understands what he is working with.
There are klystron devices at the Nexrad Doplar radar sites blasting the skies every day. Ever see those washboard patterns in the heavily-metaled cloud formations?
Yea and they are used in weather modification…people hear that think it’s a conspiracy or something, but it literally has been going on since the Vietnam conflict.
this guy is legendary
Nice video, well explained technology and much respect to the contributions of R. Dehm and the team at GE Schenectady. But - let's be clear that the klystron was invented by the Varian brothers and the GE work was based on their research. R. Dehm was NOT the inventor of the klystron tube; he was part of a team that worked on development of THIS klystron.
So informational, thanks for posting this. Which I better understood how these resonant chambers in this sort of thing work.
"Empirical Design"
Him and the boys blowing shit up to figure it out. The good old days
Tried and true vs mathematical modelling.
no one will ever beat old school like this. Never
+A. R. Jasso fluorine in the water hadnt taken effect yet
the best school, impossible to get in to.
35% efficient, and the "waste" energy causing so much heat they had to "worry" about parts of their machine melting... I'm sure tech will be significantly more efficient in the future.
Still more efficient than the internal combustion engine.....
I wonder if he was the first to use the term, “esoteric failure mode”.
This is how a real engineer talks.
Sons and daughters understand clearly!
Exellent video. Radar is a great field of the technology
Yeah, these guys were bad asses.
Had these in Cape Dyer, DEW Line, Tropo Scatter to Greenland. 50 KW output.
Thule?
I used to work in a southern plant that rebuilt klystron tubes. We rebuilt 982R as well as some NEC types. Some were a lot harder to reprocess. New filaments in the guns as well as repairing the tuners and windows.
That's cool! What were the mean times between failure for the different models you worked on? Were some notoriously bad?
I am not real sure about the life of the different tubes. The main thing is to make sure of the voltage applied to the filiments is low enough not to over react them. They need to start low and then increase the filament voltage to the point of proper use. A lot of so called engineers power them up at once to get back on the air as quick as possible. That is ghd going that makes most of them fajl sooner.
@@Sitnbull43 Ah I see, that's interesting. Thanks for letting me know!
@@PunmasterSTP are you a student or are you working in electronics? I have seen you in some other klystron videos :)
@@N.E.0.N That's cool; it's nice to meet people in the comments! I watch educational RUclips often, and randomly came across klystrons somehow and wanted to read up on them a bit. I also tutor some people in math and science, and try to review and expand my expertise over time.
The IOT tube (inductive output tube) used in broadcast TV transmitters is a klystron. Now solid state components (like FETs - field effect transistors) superseded IOT tubes.
We still use these today. In my opinion this design is far more efficient than solid state transmitters
Definitely more reliable
Very nice...
Death Ray
So they created a weapon, basically, because I can’t see any good coming from this type of device.
Weapons are good if it's for OUR side vs THEIR side. God bless the united States.
Unfortunately Our side is controlled by the federal district of Columbia.
But aren't TV transmitters and weather radar useful in our everyday lives?
@@PunmasterSTP and they can hardly get the forecast correct, the tv is rubbish and only good for propaganda, marketing and easing boredom, the tell-lie-vision is a worthless piece of junk
I'm so glad there are knowledgeable people and the cool machines they create, because otherwise, our society would go down the...tubes 😎
We can see how radar ( microwave) can change weather patterns.
Not just the aliens that ha Ray guns, hahahahaha 😅
What would a Klystron that size be used for?
Nefarious purpose
DEWs and weather modification.
For a large radar installment, or for the RF supply of a fairly chunky particle accelerator
Old school like a boss hahahaha.
Superb!!! superb!! superb!!
Nobody is making big Klystrons anymore. We're going to solid state because of that. We have 14 Klystrons, the six biggest ones are 2 megawatts.
No there’s big ones used in fusion reactors and military masers or the like
We have a klystron in medical liner accselerator.
transformers theme plays
Learning from horse's mouth itself
so how dangerous is it to humans?
Hamish Barrett It would Cook You!
As dangerous as standing in a microwave oven
@@Spearmint22425 Well, more dangerous, because they are much higher power than microwave ovens. But of course the energy is directed down a waveguide, than used to broadcast a radio signal for RADAR, or possible other uses for high power microwave.
So sad. Thank you
Wilhelm Reich RIP.
Huh?
Shoulda used a Klein bottle
Spin offs .
Snap! Sorry Folks, I'm from *DC* *Comics* and thought Rudy was covering the *Krypton* *Blaster* *Tube* that blew up the whole Planet.
The Beam is staright, that means, the Earth is flat, no curved.
No it doesn’t.
So, I sorta work in RADAR, more like RADAR software. And the RADAR signal leaves earth, and goes into space in some systems. So pretty much straight line. It doesn't follow the Earth's curve. Not sure if you are joking or not, hard to tell.
@@michaelbauers8800 , you are a Homeless ?......................lol...............
@@peterhoebarth4234 Your question makes zero sense
Absolutely
keeping this type of energy generation from us, devils
I operate Klystron based transmitters, litton l-3403 4 cavity, and make ~2.5MW Pep Max and deliver this power to a 150' fully steerable parabolic dish antenna.
Klystrons work well for a long period of time, but the will eventually fail. It's a PITA to change one out. Did I mention they don't make these anymore and supply is very limited.....
Oh man I'm sorry to hear that! Are there any newer models on the horizon that your company might pivot to?