HP 7910 Disk Drive

From: Russ Blakeman <rhblake_at_bigfoot.com>
Date: Sun Jul 25 09:42:34 1999

If it's any help, we used to use them in our missile test rack attached to an
HP1000 mini all in a rack up until 1995 when the whole rack system was
updated to a rack moounted pentium unit and standard SCSI drives. They are
very touchy about rough handling as well.

Joe wrote:

> At 11:53 PM 7/25/99 +1000, Hans wrote:
> >At a regular Ham Radio Trash and Treasure sale I went to today there was a
> >HP7910 disk drive at the bottom of a big pile of slow moving stuff that
> >seems to be there every time.
> >I didn't grab it because it was too deep, no time etc. Maybe next time.
> >
> >What system/era would this have been from?
>
> Hans,
>
> They were introduced in the 1981 HP catalog. It looks like they use a 14"
> disk. They have a whopping 12.9 Mb capacity (formatted), 32 sectors/track,
> 256 bytes/sector, 733 tracks per surface (plus 3 spare tracks), 2 surfaces,
> and an average random access time of 70 mS and rotate at 3000 RPM. They
> were available in rack mount or a desk top versions. Their cost was $7,950
> and $8,350 respectively. Oh yes and they are HP-IB.
>
> Joe
Received on Sun Jul 25 1999 - 09:42:34 BST