Looking for HP 9895A 8" floppy drive information

Joe R. rigdonj at cfl.rr.com
Fri Sep 23 09:12:34 CDT 2005

At 11:50 AM 9/22/05 -0700, you wrote:
>I recently acquired an HP 9895A 8" floppy drive and was wondering if
>anyone has user, service, or programming manuals.
>If I pop off the front cover there is a numeric dial switch, maybe
>that is simply the HP-IB address.  There are also a couple of test
>switches.  I wonder what those do.
>Anyone know for sure whether or not it is natively supported by an HP
>Integral PC? 

   I don't know for sure but I'd say Yes. The HP 9895s were replaced by the
HP 9121 and I know the IPC will support the 9121.

 I'll probably give that a quick try as soon as I have a
>I'd also like to try hooking it up to my HP 1000 which has an 12821A
>interface card.  This is supposed to be a supported boot device with
>the 12992H loader rom.
>I can look at the 12992H loader rom source and figure out how to read
>the first sector from the drive, but it would be nice to have complete
>programming information for the drive.  Apparently the 9895A is an
>Amigo protocol drive, not a CS/80 drive.  Does anyone have a generic
>Amigo protocol spec, or a 9895A specific HP-IB protocol spec?

    The Amigo protocall is posted on the net is several places including
Bitsavers IIRC.


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