Yeah, most microwaves boil down to a big capacitor, a big transformer, a big mangnetron, and a dead-simple power supply for fire safety/fan control/etc. The one

Yeah, most microwaves boil down to a big capacitor, a big transformer, a big mangnetron, and a dead-simple power supply for fire safety/fan control/etc. The ones with dials and no display might not have any control electronics to speak of. The transformers are popular for DIY projects like spot welders or HV supplies.