Re: Syntauri keyboard question

[Toinet <antoine.vignau@laposte.net>]

On 3 nov, 21:02, "Michael J. Mahon" <mjma...@aol.com> wrote:
> 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."

Thank you, Michael,

I am now the proud owner of an Alpha Syntauri keyboard (s/n A003356)
with one pedal and no interface card. See http://www.brutal-deluxe/public/
in the Alpha Syntauri folder - Disk images collected from
garberstreet.com.

How do I determine the kind of keyboard I have? Just uncover it?

Antoine