Does anyone know what guitars these came on? They made them in the 80s and my friend has one of these tremolo systems laying around his room, i picked the thing up and god damn it weighed about 1.5 pounds of solid steel. the sustain has got to be retarded on these things, so i kind of want to see about getting an old guitar that has one for cheap, im looking through peavey nitro and tracers because some of them had them, anyone else know of a guitar with it? or have a guitar with it?

just for a picture, this guitar has one :