In the worst case, you might be able to sell the shell if it's in good condition. Someone somewhere might need to replace their broken one.

But I mean... I can't imagine why the screen would be chiming.

Actually, speaking of chiming; my CRT makes these weird "ping" sounds once in a while. I have no idea what they are. Reminds me somewhat of a slight tap on an amplifier with spring reverb turned all the way up, if you've ever heard that.