PDP 11/23 and 11/05

Hi All, Just got back from another scrounging trip. I picked up a PDP 11/05. Can anyone give me a URL to a FAQ on these or tell me more about them and where I can look up the card numbers? I know next to nothing about PDPs but this one headed for the metal recyclers so I grabbed it. While I was there I found a MEI wire bonder. This is a machine that automaticly attachs the wire leads to the wafers in ICs. This one has been sitting out in the weather and is ruined for it's intended use. It does have a PDP 11/23 in it though. I'm wondering about picking it for the computer and misc parts. Are the 11/23s worth anything? There's some other very interesting stuff in the machine like a video camera and a video recognition system but I doubt it would be possible to transplant that into something else without a good set of technical info. Comments? Joe