Hi all I am going to get a Scandoubler from eBay well what I need to know is as for the memory does it use any up? At the moment I see on my screen 1.7xxx and I also have 32Mb of fast ram.
A scan doubler won't use any ram, it just modifies the video output of the amiga.
If you change the resolution or depth of the workbench screen, then the memory usage will change. But to work that out you'd need to say what the old & new resolution & depth was.
