--- On Sat, 7/9/11, Doug McNutt <[email protected]> wrote: > Audio goes to a speaker and a phone jack and was never > mixed with the video in a composite output. Some third > party may have made an NTSC, National Television Standards > Committee, conversion to allow for a second monitor but I > never saw it. Apple's earlier Apple II line did put > out NTSC video and you could run a TV monitor from that but > even there I don't think the audio was ever mixed with the > video.
On most if not all 80s computers, there was a separate audio output. If you look at a Commodore 1702 monitor for instance, there are audio and video jacks. The sound would be pumped through the rf output, ready to use for your actual tv set. > It was the SE, system extendable, series that first had an > internal plug-in capability. That made it possible to drive > a lot of monitors probably including third party color NTSC > composite. Radius was a major supplier of cards for that. Yeah there were some beautiful large screen b & w monitors back then. The only b & w monitor I have these days is an HP (for UX stuff). And correct me if I'm wrong but don't most big b & w monitor have something like a single rca input? Which would indicate a composite signal (not ntsc). > All things considered it's probably easier to replace the > mother board with a PC104 sized single board computer that > runs at 500 MHz and already has facilities for driving that > 9 inch monitor. But that would take you into Linux and > wouldn't be anything like Mac OS 4 and Quickdraw. Not the > OP's intention. Besides that would be cheating LOL. Of course you could plug a sbc into a compact mac and emulate it or something w/more horsepower (a later mac)? Going back some, many single board computers/sbc's had facilities for connecting many flat panels into them (that is if you scarfed a panel from a broken laptop, chances are it could work). Incidentally I have at least a dozen older color tft active matrix IBM thinkpad panels most still in the anti-static bag if anyone's interested. If you were to use it in a mac, you'd have to mount it sideways, as the sides have circuitry and whatnot and really aren't "square", which means you have to figure out a way to rotate your image 90 degrees. O come on if you're going to go this far work that problem out too! -- ----- You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] To leave this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/
