I have a largish collection of NeXT machines, and it's something of a
nuisance to have to keep a keyboard, mouse and video around just for
them. I think I can handle building a mouse/keyboard adapter, but I
wonder about video... and especially the mono machines (I have RGB
cables for the colour machines). I know a company *used* to sell
something to convert from mono to RGB... does anyone have any idea
how this could work (or better, to SVGA)? Any ideas for circuits?