Looking for docs / schematics for MITS 88-HDSK and its associated Pertec drive
derschjo at gmail.com
Wed Jun 10 23:23:28 CDT 2015
Hey all --
I'm assisting in the restoration of an Altair 8800 system which includes
the MITS 88-HDSK ("Altair Hard Drive Controller") and Pertec D-3422
removable pack/fixed platter drive and after cleaning everything up,
rebuilding supplies, etc, the drive spins up and goes Ready but all
attempts to boot end in "LOAD ERROR: 1" which I have been told indicates
that the Altair doesn't think the drive is ready.
I can't find any substantial documentation on the controller (the D-3400
series is covered on bitsavers); I've checked with the Altair Computer
Club and they don't have any docs posted (and the one guy who might have
a copy of the docs is on vacation until the 12th, which wouldn't
normally be a big deal but we're trying (perhaps in vain) to get this
thing ready for an event on Saturday...).
Anyone have any docs or any other information for the 88-HDISK controller?
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