Toinet wrote:
Hello There, A Parisian eBay "colleague" is selling a Syntauri keyboard with no warranty nor disk nor expansion card and I am interested in buying it. I know, it is like having a car with no engine (or replace with a more adequate image) but I was wondering whether having a such a card is: - difficult to find and buy (because it is rare ;-) - difficult to copy (because of specific ICs) - easy to clone (thanks to Carte Blanche)
It's not a particularly complex card (I don't have one, but I've seen one), since it is basically a multiplexer keyboard scanner. There are a couple of models of the keyboard--one velocity-sensing and one not. The timing requirements for scanning the velocity-sensing one are pretty tight, since time from "break upper contact" to "make lower contact" is in the millisecond range, and is used to determine velocity. I'm sure someone has good scans of the card. -michael NadaNet 3.0 for Apple II parallel computing! Home page: http://home.comcast.net/~mjmahon/ "The wastebasket is our most important design tool--and it's seriously underused."