Probably not a new idea; but I recently watch Adrian's CRT video:
And immediately thought I'd buy one or two and try my hand at Converting it to a Vector CRT for a micro Asteroids game.
Of course; I somewhat certain I'd have to rewind the yoke to get vector deflection; but I've never done it so.... clueless.
Probably nothing more than a silly hobby phantasy; but curious what other "experts" might have as far as ideas go.
I stopped short of actually ordering any of these from Alibaba... because the shipping costs were high enough that I'd be disappointed if it arrived broken.