i wonder how many vacuum tubes that aren't CRTs or magnetrons are still in use
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@ofafeather I'm not talking about types--I'm thinking how many individual tubes are in use!
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@ofafeather also I was about to commend you for managing to spell bremsstrahlung correctly and then remembered you're german, of course you can spell it right
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(german words like that always blow our mind)
@Felthry can think of at least two more types :3 not very wide-spread, but damn cool.
like klystrons in particle accelerators. not many, but there's a few per accelerator and each is usually a couple megawatts of output power
i think xrays are still produced mainly by bremsstrahlung too