That's nice, but I'd like to see if it works before I spend a lot of money on it. I have other Macs that I want to fix up too.

I remember reading a how-to on building your own connectors when no off-the-shelf parts are available. If nothing else I could stick a DA-15 connector on a breadboard and see what happens. Then I'll think about upgrade cards, port change or adapters. A DE-15 connector could fit in the hole, but does anyone know how that DIP switch package on Mac-VGA adapter is wired?