Horizon obtained today
n0hj
Well, I swapped some radio gear today for a 1981 Horizon with the
following board complement: MDS-AD3, ZPB-A2, HRAM6, a Hayes
Micromodem 100, and a John Bell Engineering A/D and D/A converter on
an S100 protoboard. I'll take my time bringing this back to life (I
have way too many projects) but it should be fun as my very first
computer was a Horizon kit that I've always regretted passing on years
ago.
I've located much of the needed documentation on the web but haven't
located docs for 1) the HRAM6 memory board and 2) the construction and
schematic for the bus board with I/O. Does anyone have scans for
these that I could obtain?
Thanks much,
John - Colorado Springs, CO
Dave Dunfield
Congrats on the "new" Horizon...
I've got a fair bit of Horizon material on my site, including the system
manual which has documentation and schematics for the main system
board with I/O etc. I've also got the system user manual, and manuals
for several N* boards. There's also my Horizon simulator, and a number
of disk images which can be used on the simulator, or transferred to the
physical system with tools packaged with the simulator.
System manuals & Simulator: "NorthStar Horizon" in list of CP/M systems.
Board photos and docs: "S-100" title is a link to cards.
Disk images: "Software/Images" near the bottom of the main page
Regards,
Dave
--
dave09@ Low-cost firmware development tools: www.dunfield.com
dunfield. Classic computer collection: www.classiccmp.org/dunfield
com
John Crane
-John