Story:
This disk drive unit was part of the remaining parts of the
Computer Museum Aachen (CMA) collection. Everything that the
Computer History Museum of California could not take was left
in a hangar for several years until rediscovered. The Hangar
was about to get torn down and a major effort was undergone
within the german community of classic computer enthusiasts to
save as much as possible from being scrapped.
It is unknown to me to which Honeywell Bull computer system
installation this disk drive unit belonged to. Maybe
somebody reading this is able to unveil where the
Honeywell Bull installations that were donated to the CMA came
from. This disk drive seemed complete and in an
acceptable shape to me which is why I decided to save it. It
belongs to the BR3xx type of CDC drives that were OEM'ed to
other computer vendors and customized if required. So far, I
was not able to figure out what the differences of the C9 unit
are compared to other BR3 disk drives. Documents can be found
on bitsavers, but they do not cover BR3C9-type of drives.
Unfortunately, no documents came with this unit.
The drive is waiting for restoration and comissioning. If
anybody as disk packs for these drives, please get in contact
with me. I'd be very interested in these.