Hot Wire to Cut PVA Bond Between a CRT and Its Safety Lens?

On 12/07/2014 11:47 AM, Bob Vines wrote: I did this on a CRT from an HP 250 a number of years ago. If I remember right, the CRT face is around 10"x12", so the shorter dimension's perhaps a bit less than a typical screen. I just used the 12V from a spare PC PSU that was kicking around (with a dummy load on the 5V so that it would regulate OK) and some resistance wire. I'm afraid that I don't recall the wire characteristics - but there was just enough heat to do the job if I took things slowly (and that's likely preferable to something which would be faster, but could possibly be dangerous due to increased heat). I suspect that something with a slightly higher voltage (~15V ?) and run via a wire-wound rheostat for control would be the way to go if you're doing this more than once. cheers Jules