The existence of microbolometer arrays implies that we probably have the technology to make micro-scale vacuum tubes

i wonder if anyone will ever find a use for that
-F

@Felthry The MiG-25 jet apparently used compact vacuum tubes in its avionics, but it's not really made any more

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@VoxSomniator well yeah there've been compact vacuum tubes before; micro-miniature tubes were used for hearing aids

i'm thinking more... i dunno, something you'd use in conjunction with solid state devices, rather than instead of them
-F

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