From the "Active Microwave Circuits" course that im taking, the "TWT" concept became much easier to understand with this video. Thank you for the detailed explanation, both for application and teardown. =)
I really appreciate your effort to do like this great video, I think this is the best way of explanation which makes things easier to understood, you covered both: the basics of theory, and how is the TWT seems in real-world, I hope to find like this video to teardown some other types of newer high power vacuum tubes as BWO. many thanks.
Many thanks for a great explanation. I went to college in the sixties and learnt the basics on a course called "Introduction to Electronics" The tutor was a man called William Boyce. He had worked in the Electronics trade for one of Britains major manufacturers. Names like Murphy, Eco, Bush, were just a few I can name. He taught us about thermionic emission but did't go deeper. Your explanations make it understandable to me. I'm sure many people will say the same.
My Dad does mechanical design for Satellites and did allot of designs for TWT transmitter, quite cool to talk to the guys how design the TWTs and all the RF behind it(People form Telefunken and such), just amazing. Unfortunately they are not longer working and allot of practical knowledge gets lost.
Although TWTs' are still widely used in satellites and other high powered microwave transmission systems. But a lot of the knowledge for making vacuum tubes nowadays has become lost art unfortunately.
Jup that's right, they have allot of advantages over solide State. But also are tricky, they often use 14kV acceleration voltage that is not easy to handle, especially in Space. They do even things like driving them with Voltage to arc out cathode deposit in the tube to get a view more hours out of a tube. It is sad to see such things get lost over time.
If these magnet pieces were used to fine-focus the beam, they would need to be cemented in place. Something is very wrong about loose magnet pieces inside.
For any normal bit of equipment a pinched solid coax line and magnetic fragments would be a sure sign of something being busted / low gain. In this case, who knows, maybe tuning. Voodoo.
I have some Alfred/Singer network analyzer gear that incorporates "Backward Wave Oscillator" tubes, which appear to be very similar in construction to the TW tube (maybe they are in fact the same, I don't know much about this stuff - I can't even spell "RF") I've just uploaded the instruction manual for one of these to the "manual exchange" yahoo group, but I can't get a working link out of it, possibly because it's in some sort of "moderator/review"' status, due to it being my first upload there. I'll post a link here if/when I can get one. Chapter 4 contains some detailed info and diagrams on the tubes. And maybe one day I'll do an ignorance filled teardown video of these units...
Oops, it might have just been the way my browser is set to handle PDFs. So maybe this will work:- xa.yimg.com/df/Manual_Exchange/Alfred-Singer+650+Sweep+Oscillator+653C.pdf?token=2QbZ-UxStXb7QBUy9O24G1yEdNf9H6LKhUCF0cMmLCsKvUS5EKpIpCE_w2-2wnMYtPP89w4h5zK7uzlWs7419ojWKO1pnQt31_lUYDC5xuzBQ2pLk5pMj-mJnP7yJK4-KyzlaOFI0q__3w-hH6PQ8q5n&type=download
Sorry, that link seems a bit dicky, and may require joining the group. So I've also uploaded it to:- www.pdf-archive.com/2018/03/27/alfred-singer-650-sweep-oscillator-653c/
for some reason, the last couple of comments were "held for review" I guess because they contained some links.... Anyway, thanks so much! Love the BWO tube diagram!
6 ปีที่แล้ว +1
Cool does it have a "Flux Capacitor? ( Dave's channel reference ) Thumbs up ! Winner Winner Chicken dinner !
@@Riskteven I think most electronics geeks are science fiction fans. After all knowing electronics give you the power (haha bad pun) to build things like styropyro's laser guns, fictional versions of which are often a feature in science fiction flicks and series. So I guess I'll have to rename my breaker panel switches "photonic collectors", "flux capacitors", "plasma manifolds" and "warp coils" when I finish my solar setup. These are obviously nerdy geek names for the solar panels, inverter, charge controllers and the batteries :P
very interesting tear down which i was looking for over a very long time. This is first demo of teardown a very expensive working TWT
Awesome teardown! I'm just learning about twt and for how old that amp is, the machining precision of that twt is astounding.
From the "Active Microwave Circuits" course that im taking, the "TWT" concept became much easier to understand with this video. Thank you for the detailed explanation, both for application and teardown. =)
I really appreciate your effort to do like this great video, I think this is the best way of explanation which makes things easier to understood, you covered both: the basics of theory, and how is the TWT seems in real-world, I hope to find like this video to teardown some other types of newer high power vacuum tubes as BWO. many thanks.
Thanks Ardnan!
Many thanks for a great explanation. I went to college in the sixties and learnt the basics on a course called "Introduction to Electronics" The tutor was a man called William Boyce. He had worked in the Electronics trade for one of Britains major manufacturers. Names like Murphy, Eco, Bush, were just a few I can name.
He taught us about thermionic emission but did't go deeper.
Your explanations make it understandable to me. I'm sure many people will say the same.
Thanks Jeremy!
My Dad does mechanical design for Satellites and did allot of designs for TWT transmitter, quite cool to talk to the guys how design the TWTs and all the RF behind it(People form Telefunken and such), just amazing. Unfortunately they are not longer working and allot of practical knowledge gets lost.
Although TWTs' are still widely used in satellites and other high powered microwave transmission systems. But a lot of the knowledge for making vacuum tubes nowadays has become lost art unfortunately.
Jup that's right, they have allot of advantages over solide State. But also are tricky, they often use 14kV acceleration voltage that is not easy to handle, especially in Space. They do even things like driving them with Voltage to arc out cathode deposit in the tube to get a view more hours out of a tube. It is sad to see such things get lost over time.
If these magnet pieces were used to fine-focus the beam, they would need to be cemented in place. Something is very wrong about loose magnet pieces inside.
An interesting piece of equipment, especially the tube. Subbed, seen a few of your videos, they're really good :)
instaBlaster
For any normal bit of equipment a pinched solid coax line and magnetic fragments would be a sure sign of something being busted / low gain. In this case, who knows, maybe tuning. Voodoo.
Who knows :-)
how much the prices of microwave measuring devices?
Can you use thos to create an emp cannon
I have some Alfred/Singer network analyzer gear that incorporates "Backward Wave Oscillator" tubes, which appear to be very similar in construction to the TW tube (maybe they are in fact the same, I don't know much about this stuff - I can't even spell "RF")
I've just uploaded the instruction manual for one of these to the "manual exchange" yahoo group, but I can't get a working link out of it, possibly because it's in some sort of "moderator/review"' status, due to it being my first upload there. I'll post a link here if/when I can get one. Chapter 4 contains some detailed info and diagrams on the tubes.
And maybe one day I'll do an ignorance filled teardown video of these units...
Indeed, BWO is also in the TWT family. I'd definitely interested to see your uploaded manual when it becomes available. Thanks in advance!
Oops, it might have just been the way my browser is set to handle PDFs. So maybe this will work:-
xa.yimg.com/df/Manual_Exchange/Alfred-Singer+650+Sweep+Oscillator+653C.pdf?token=2QbZ-UxStXb7QBUy9O24G1yEdNf9H6LKhUCF0cMmLCsKvUS5EKpIpCE_w2-2wnMYtPP89w4h5zK7uzlWs7419ojWKO1pnQt31_lUYDC5xuzBQ2pLk5pMj-mJnP7yJK4-KyzlaOFI0q__3w-hH6PQ8q5n&type=download
Sorry, that link seems a bit dicky, and may require joining the group.
So I've also uploaded it to:-
www.pdf-archive.com/2018/03/27/alfred-singer-650-sweep-oscillator-653c/
Thanks!
for some reason, the last couple of comments were "held for review" I guess because they contained some links.... Anyway, thanks so much! Love the BWO tube diagram!
Cool does it have a "Flux Capacitor? ( Dave's channel reference ) Thumbs up ! Winner Winner Chicken dinner !
LOL!
"Flux capacitors" and "warp coils" are great terms, I am glad that many electronics geeks on here are also science fiction fans!
@@Riskteven I think most electronics geeks are science fiction fans. After all knowing electronics give you the power (haha bad pun) to build things like styropyro's laser guns, fictional versions of which are often a feature in science fiction flicks and series. So I guess I'll have to rename my breaker panel switches "photonic collectors", "flux capacitors", "plasma manifolds" and "warp coils" when I finish my solar setup. These are obviously nerdy geek names for the solar panels, inverter, charge controllers and the batteries :P