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. =)

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.

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.

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.

An interesting piece of equipment, especially the tube. Subbed, seen a few of your videos, they're really good :)

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.

Can you use thos to create an emp cannon

how much the prices of microwave measuring devices?

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...

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.

Cool does it have a "Flux Capacitor? ( Dave's channel reference ) Thumbs up ! Winner Winner Chicken dinner !