this post was submitted on 26 Sep 2026
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From what I've heard we are actually forgetting how to make CRTs. Not sure how valid that claim was though as I didn't research it at all.
In any case if you're thinking about getting a CRT you might as well get one while they're relatively cheap. Here in Poland you can get a used CRT from anywhere between 50-100 USD for the hypercommercial models up to 200-500 USD for the enthusiast ones. And I doubt they'll be getting any cheaper.
They're really simple electronics, but there are likely a lot of little trade secrets that made them better. At the end of the day, it's a cathode ray tube with a couple of electromagnets to divert a pulsing electron beam to hit different parts of the phosphor-coated end of the tube. The signal fed to the magnets is analog, and the beam sweeps the screen line-by-line every frame. (Or every other line for interpolated signals.)