PLEASE READ! 17" Diamondtron - Make an offer 21" Trinitron - Make an offer 2 Apple Studio Display CRT monitors available. One is a Diamondtron 17" and the other is a behemoth 21" true Sony Trinitron tube. They both need maintenance. The 17" - When the power is on there is a black screen and a clicking (it might be the flyback circuitry). The 21" turns on and I get picture but the image is centered on screen. The horizontal geometry needs realignment. It's very like that the horizontal deflection need new caps replaced. I do not believe that this is a flyback issue. I've also been able to successfully change resolution and adjust geometry settings in Linux. It's just that it isn't filling the entire horizontal width. I wanted to work on them myself but have been unable to. They can be brought back to their former glory but require the right person with the technical know how. Both monitors could benefit from someone knowledgeable in CRTs and general electronics to recap where needed. If you're interested, message me and make me an offer. I have done a lot of research on the monitors and can also supple technical documents.