EMP/HERF SHOCK PULSE GENERATORS I think it would be fun to have one mounted to my truck and zap idiot drivers.
Always wanted to do this with a micro-oven magnetron. Well it's my theory that it's possible at least. Dangerous hobby though!
partof any "emp pulse"field is an extremely rapid rise( ergo "high freq") extremely short pulse of extremely high energy.( its not just frequency). yeah magnetrons create microwave range frequecies, as do gunn diodes in resonant cavities.(gunn diode oscillators)twt's amplify but its nowhere near a nuclear burst.
Also in sonar, IIRC. At least those tubes in the sonar cabinets were, ah, Large Economy Size, and glowed brightly when the sound boys triggered a pulse. I guess I'm not sure they were klystrons --. Yeah, been a while, just a tad over 40 years.
Had a microwave frequency range; fixed and swept frequency measurement and calibration course taught in Denver on Lowry AFB by NAVY TECHS. Swabby's(chiefs) knew their stuff...