[comp.os.cpm] DTC900 hard drive controller help

snipehunt%oak.decnet@PINE.CIRCA.UFL.EDU ("OAK::SNIPEHUNT") (03/12/91)

Greetings!  I have a monstrous old hard disk system (8", 40mb fixed and
10mb removable) hooked to my LB+ via a DTC900 nearly-SCSI controller.
The fool thing didn't survive the last move, and now I'm trying to get
it working again.  It's a nightmare of first-generation TTL gates.

If anyone out in netland has full schematics for this monster, or better
yet, a spare that they'd be willing to part with cheap (summer tuition is
coming up :-) ), I'd love to hear from you.  DTC doesn't even want to 
admit they ever made the thing in the first place, and the documentation
I have doesn't cover circuits or operation at all.  Can someone bail me
out?

(Just between thee and me, I'd *much* rather ditch it and get a nice,
quiet 3-1/2er in the 40mb range, but the wife'd pitch a fit if I did :-) )

Bruce H. McIntosh
snipehunt@oak.circa.ufl.edu   Go Gators!
dhbhm@nervm.nerdc.ufl.edu