[Coco] Re: My coco3 gallery (Bob Devries)

[Andrew]

 > Yeah, it still works. I was kinda surprised myself.
 > I did use it with a disk drive (also home built) based on a 2793
 > Western Digital controller.

Mr. Devries,

Would you happen to have the schematics for that controller? I don't 
even know if the 2793 controller still exists or not, but I could use a 
schematic of a "recent" disk controller.

One of my future projects is the restoration of an Altair 8800, and I 
have ideas on getting a disk system up on it (as well as a network 
interface - dreaming big here) to save any toggled in code. I have yet 
to find an old issue of Byte or something that could lead me in such a 
direction, as to how to build such a thing (I also am needing a pinout 
of the S-100 bus, but that shouldn't be hard to find). I am not looking 
to have a disk system that could read disks of the era. To do so is as 
close to impossible as I have seen; floppies of the time (most? all?) 
were hard-sectored, and I have never held a real one, I have only seen 
photos. It has been easier for me to find punch cards and core memory 
for my small "collection" of old hardware. I am just looking for a 
system that I could save new work on.

If you don't have the schematic, I wouldn't worry about it. I am sure 
that when I get to that point in the restoration, I will be able to find 
something that can help me.

Thank you,

-- Andrew L. Ayers
    Glendale (Phoenix), Arizona