23 Jan
2009
23 Jan
'09
8:55 p.m.
Chuck Guzis wrote:
On 22 Jan 2009 at 3:42, William Maddox wrote:
Wow, that's quite a drive!
Found a brochure of sorts at
http://archive.computerhistory.org/resources/text/Bryant/Bryant.Model2.1965….
(Gotta love the gal they have on the cover :)).
Unfortunately these drives have 39" platters according to the above, so
they're not what my platter came from... very cool, though :)
Josh
I've seen large platters like this on
head-per-track disks
made by Burroughs. There's one on the Illiac IV at CHM.
I saw a similar drive at CMU that was allegedly the swapping
disk for a DEC KA-10. I vaguely remember being told that
the capacity was 512K words (36 bit on the KA-10). The
drive was designed for speed, not capacity.
Could also be from one of the vertically-mounted Bryant disks. I
used to have one of those platters in my office; thought about making
a coffee table of it, but the hole in the middle was a problem.
IIRC, they didn't spin very fast--about 600 RPM. The heads were very
heavy.
There are photos and specs for Byrant units on the web.
Cheers,
Chuck