@yaodema huh, you're right, dunno where I got the idea that it was metallic beryllium. still, it's not hard to accidentally break it and BeO powders easily, so it's still not a good idea
magnetrons are pretty fascinating though, just in how they work
@Felthry they're some of the weirdest vacuum tube tech in existence and most people don't even know that's what they are.
@yaodema vacuum tubes are generally fascinating but cavity magnetrons, travelling wave tubes, and beam tetrodes are some of the best
also the krytron is pretty neat but that's mostly because of things unrelated to the krytron itself, just the history of it and how it's illegal
@Felthry well. It's beryllium oxide, in the insulators, as far as I can find. And in both cases they're basically inert as long as you don't break and powder them.