/diy/ - Do It Yourself

>>2558767
I'm not planning to sit inside the vacuum chamber though.

>>2558744
> video about rebuilding tubes:
I've seen it, they still refuse to explain in details how exactly the electron gun on picture is constructed.
>1kV per inch of screen size (diagonal) is normal
I won't need any screens, I want it to weld metals.

>>2558506
> Actual construction is just a hot cathode with accelerating grid, followed by a few focusing coils or rings, and a current return conductor near/on the target. I’d recommend looking what electron microscopes and e-beam lithography units use, maybe even looking into patents.
Thank you.