Date   : Mon, 25 Jun 1990 04:18:30 -0400
From   : ac959@cleveland.Freenet.Edu
Subject: ST-506 data

>Date: 25 Jun 90 02:20:36 GMT
>From: tindle@g.ms.uky.edu  (Ken Tindle)
>Subject: Anyone still remember the Seagate ST-506 hard drive?
>Message-ID: <15505@s.ms.uky.edu>

>And, I suppose if I really expect to use the drive, I need to know the
>total number of cylinders, heads, starting reduced write current and
>write precomp cylinder.  Anyone have a chart of Seagate drive specs, or
>know where I could call or write to get this data?

The following is an excerpt from ALLSPEX.LBR which list the
specs of many of the Seagate line of hard drives.  It is
available on my RCP/M.  I hope that this is what you need.  Take
care.

               *********************************

                              ST - 506

       UNFORMATTED CAPACITY (MB) ________________6.38
       FORMATTED CAPACITY (32 SECTORS) (MB) _____5.0
       ACTUATOR TYPE ____________________________STEPPER
       TRACKS ___________________________________612
       CYLINDERS ________________________________153
       HEADS ____________________________________4
       DISCS ____________________________________2
       MEDIA TYPE _______________________________OXIDE
       RECORDING METHOD _________________________MFM
       TRANSFER RATE (mbits/sec) ________________5.0
       INTERFACE ________________________________ST506
       TPI (TRACKS PER INCH) ____________________255
       BPI (BITS PER INCH) ______________________7,690
       AVERAGE ACCESS (ms) ______________________85
       SINGLE TRACK SEEK (ms) ___________________3
       MTBF (power-on hours) ____________________11,000
       POWER REQUIREMENTS: +12V START-UP (amps) _3.5
                           +12V TYPICAL (amps) __1.6
                           +5V TYPICAL (amps) ___0.7
                           TYPICAL (watts) ______22.7
                           MAXIMUM (watts) ______47
       BUFFERED STEP PULSE RATE (micro sec) _____3 ms ONLY
       WRITE PRECOMP (cyl) ______________________128
       REDUCED WRITE CURRENT (cyl) ______________128
       LANDING ZONE (cyl)________________________157
       IBM AT DRIVE TYPE ________________________N/A

                 ******************************


--
Ed Grey (ac959), Sysop of The Grey Matter BBS & RCP/M 213-9716260
                 Internet: ac959@cleveland.freenet.edu
                 Bitnet: ac959%cleveland.freenet.edu@cunyvm
                 Fidonet: 1:102/752 or 1:102/743


End of INFO-CPM Digest V90 Issue #108
*************************************