Help identifying a big ol' drive platter
Roy J. Tellason
rtellason at verizon.net
Sat Jan 24 12:13:40 CST 2009
On Friday 23 January 2009 11:55:10 pm Josh Dersch wrote:
> Chuck Guzis wrote:
> > On 22 Jan 2009 at 3:42, William Maddox wrote:
> >> 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
> Wow, that's quite a drive!
> Found a brochure of sorts at
>.102646212.pdf. (Gotta love the gal they have on the cover :)).
Wow, how sixties...! :-)
I especially like that pic of the unit with the cover off on page 5.
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space, a critter that can
be killed but can't be tamed. --Robert A. Heinlein, "The Puppet Masters"
Information is more dangerous than cannon to a society ruled by lies. --James
More information about the cctech