A videoswitcher for pc's and an Amiga monitor like the 1940 or 1438/1538 or other multiscan monitors. They have got a vga connector that connects to to switcher, in the AGA output you put then a vga adapter that connects to the videoswitcher too, and then of course the gfx card and then you can use two outputs on one without the use of a scandoubler !! :-D
