---------- In article <8mq0qi$11hi$1@news.gate.net>, louiss@gate.net (Louis Schulman) wrote: >You are correct about everything except the the last part. Apple actually >defined XRGB as analog RGB, even though it consisted of 4 digital outputs. >These digital outputs could be run through a simple circuit (Apple called it >a "summing network") which supposedly produced analog RGB. > >The AppleColor Monitor 100 has this circuitry built in. There is a diagram >on how to build this circuit in the Apple III manual, which will allow the >use of a "normal" analog RGB monitor. > >And, as noted in another post, somewhat coincidentally, an Apple IIGS monitor >will produce a picture from the XRGB signal, but the colors will be wrong and >you will only get 8 colors (instead of 16). > >Louis > >PS If anyone has an AppleColor 100 monitor they want to sell, please let me >know. I'm finding all sorts of interesting things browsing through Apple's Tech Info archive e.g AppleColor Monitor 100: Making it compatible with the Apple IIGS at Apparently there is a switch inside called 16 color/8 color. Setting it to 8 color allows the monitor to display all IIgs colours. Presumably this disables the summing network, turning it into an analogue RGB monitor. Roger Johnstone, Invercargill, New Zealand http://homepages.ihug.co.nz/~rojaws ------------------------------------------ Your mouse has moved. Windows must be restarted for the change to take effect. Reboot now? [ OK ]