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		 Miniscribe Disk Drive Specifications
				For
			    Model: 3012
     ************************************************************

     FORM FACTOR                           5.25 inch HH
     INTERFACE                              ST412/ST506
     DATA ENCODING METHOD                           MFM
     DATA TRANSFER RATE (Mbit/Sec)                  5.0

     DISK DRIVE CHARACTERISTICS
	HEADS                                         2
	CYLINDERS                                   612
	SECTORS/TRACK (512 Byte Sectors)             17
	WRITE PRECOMPENSATION CYLINDER              128
	REDUCED WRITE CURRENT CYLINDER              612
	MINIMUM STEP PULSE RATE (micro-Seconds)       6
	UNFORMATTED BYTES/TRACK                  10,416
	RADIAL TRACK DENSITY (TPI)                  588
	ROTATIONAL SPEED (RPM)                    3,600
	UNFORMATTED CAPACITY (Millions of Bytes)   12.7
	FORMATTED CAPACITY (Millions of Bytes)     10.7
	FORMATTED CAP. (MB = 1,048,576 Bytes)      10.1

     ACCESS TIMES (mSec)*
	SINGLE TRACK                                 18
	ONE-THIRD STROKE**                          155
	MAXIMUM                                     420
     *(INCLUDES SETTLING)
     **(APPROXIMATION OF AVERAGE)

     POWER REQUIREMENTS
	DISSIPATION (Watts)
	   TYPICAL                                 18.0
	   MAXIMUM                                 22.0
	CURRENT (Amps)
	   +5 V DC (+ or - 5%)                      1.5
	   +12 V DC (+ or - 5%)                     0.9
	   MAXIMUM STARTUP CURRENT                  4.4

     PHYSICAL DIMENSIONS
	HEIGHT (in)                               1.625
	WIDTH (in)                                 5.75
	DEPTH (in)                                    8
	WEIGHT (lbs)                                3.5

     OPERATIVE ENVIRONMENTAL LIMITS
	MINIMUM TEMPERATURE (Centigrade)              4
	MAXIMUM TEMPERATURE (Centigrade)             46
	THERMAL GRADIENT (Degrees C/Hour)            10

     RELIABILITY
	MTBF (Hours)                             10,000
	MTTR (Minutes)                               30
	COMPONENT DESIGN LIFE (Years)                 5