AliExpress has these 4-inch "flat CRTs" that look like they scan the vertical axis onto a sort of parabolic screen. I've thought about playing with one, but dec

AliExpress has these 4-inch "flat CRTs" that look like they scan the vertical axis onto a sort of parabolic screen. I've thought about playing with one, but decided I don't want to risk shocking myself for a tiny distorted image. Still have no idea for which application they're intended. https://www.aliexpress.com/i/3256805660504572.html https://www.aliexpress.com/i/3256805660504572.html