Hi Bob,
Thanks for the info ... these are 3380 "E" models. Smoked plastic cover
over an AL casting. I assume the magnets & actuators must be in the ends
of the drive housing. Haven't had a chance to look at them yet. I can
imagine a head crash on those would have been something! Still can't get
over the size of the drive motor!
Craig
Bob Brown wrote:
3380's were a product of the 80's. There were several different
flavors...the originals came out in the early
80's. They were known as A0's or AA's. or AD's. They were 'single
density'...each hda had two addressable
actuators (one coming out each side)...each actuator addressed about 600MB
of storage.
They later came out with AE's which were double density...then J's and K's
which were trible density.
Did you happen to grab the magnets from the cabinets? VERY powerful
permanent magnets indeed! (very heavy too).
I have a 3380 HDA I saved from my mainframe days...had a MAJOR
headcrash....when I opened up the top to look, the
head that crashed was vaporized!
-Bob
At 08:59 PM 3/18/2001 -0500, you wrote:
> Among my pickups over the weekend were a pair of these HUGE IBM
>3380 drives. Couldn't even begin to find room for the entire unit with
>its
>cabinet and controllers, but did scavange the drives and motors out of
>the cabinet. Biggest drive I've ever seen. Belt driven! from an external
>1.5
>HP motor ..these things are Big! Cast alluminium housing w/14" discs,