What is the best use for an old CRT monitor?

It's lying around. I don't have enough room on my desk to use it as a second monitor. It'd be cool to have it doing some sort of visualization or lighting effect. Is the tube useful for anything? I'm game for it all. Thanks!

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randofo8 years ago
First, let me state for the record that old CRT monitors are extremely dangerous to work with.

Second, you could crack it open and turn it into an audio visualizer like this one. You just need to figure out which two wires are the horizontal trace and which are the vertical. This will depend on whether your audio "visualizes" vertically or horizontally across the screen (i.e. if you hook up the audio to the horizontal, the audio will visualize horizontally). If I remember correctly, they didn't add any fuses to their setup, but you may want to consider attaching some between your electronic device and the tube to prevent any accidents.

Third, let me point out again that CRT tubes are very dangerous (especially when turned on) and you should only do this if you feel comfortable working with very high voltages and currents.
curtisseligson (author)  randofo8 years ago
I was certainly aware of the fact that tubes are dangerous to work with, but thanks for emphasizing it. That's a cool idea, but I would probably go for a safer/easier use first. But thanks anyways!
You could use it as an osciliscope (i have a laser one in mind,) a fishtank, a camera or just sell it.
richms8 years ago
Make it into a table arcade game like on arcadecontrols.com Use it to dry shoes on since they get so hot put it somewhere else on one of those cheap SD card photo players as a poor mans digital photo frame Attach it to a chain to stop your boat from drifting away cut a hole in the wall to recess it so you have room to use it?
curtisseligson (author)  richms8 years ago
Definitely some creative ideas there. Thanks.
Gjdj38 years ago
If you wanted to really take it apart you could get a flyback transformer. Those are great for all sorts of high voltage applications. If you look in the related instructables section to the right of the answers, you'll see thermoelectric's instructable. It has pretty good instructions.