IBM 3380 disk drives / info?

From: Bob Brown <bbrown_at_harper.cc.il.us>
Date: Mon Mar 19 15:37:58 2001

If you think they look impressive, you should have watch 'em spin up and
down...quite a nice
sound! More POWER!! hehehe!!

The actuators are in the ends (attached to the voicecoils)..if you want,
you can remove the
sets of heads (makes a real nice display)...a bunch of things to inscrew,
but quite do-able.

The magnets are in the cabinet..the voice-coil slides in and out of the
magnets.

-Bob




At 11:51 AM 3/19/2001 -0500, you wrote:
> 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,
Received on Mon Mar 19 2001 - 15:37:58 GMT