Everybody knows what a light-emitting diode is.
It's fairly common knowledge that incandescent lightbulbs are light-emitting resistors.
I briefly wondered if there's such a thing as a light-emitting capacitor. Then I remembered that yes, yes there is: a cathode ray tube.
Follow
I'd rather say that an antenna is a light (albeit usually at a weird frequency) emitting capacitor (unless it's an inductive antenna, which is a light-emitting inductor). IMO CRT is a bit cheating; it's as much a capacitor as a vacuum tube is a capacitor.
