On Fri, 16 Mar 2012, Christian Corti wrote:
Speaking of the Signetics 2650, does anyone have
anything about the
Signetics TWIN (e.g. manuals, schematics)? We have a bare system without
floppy drive, but with a bunch of hard-sectored floppies that I have just
dumped. They containt mostly SDOS related stuff, e.g. system sources,
Pascal compiler etc.
Is there really nothing? I'm especially interested in the floppy interface. I
suppose that the external drive box contained the controller that attaches to
the master CPU board. Since I don't have the drive box (nothing except the
base system) I can't revive the system at the moment.
So I guess that I have the only system in this universe, that makes it
pretty rare I think ;-)
Christian