User guide

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QUIKSTOR
33-MEG SUBSYSTEM SPECIFICATIONS
Our 33 megabyte (formatted) hard disk subsystems are adaptable to either the
Heath/Zenith H8 or H89 computer systems via our QUIKSTOR subsystem. This same drive is
also used for our Quikstor internal systems for the Z100 and Z150 series of computers. .
Please note that any Winchester hard drive unit is very delicate. The drive technology uses
a "flying" head which never makes contact with the disk surface, but floats slightly above
the surface. Never subject this unit to any type of shock or rough handling. When the unit is
in operation, it must be level and on a hard rigid surface. It must not be subject to any
vibrations, i.e. don't knock the unit while in operation, or you could damage the hard disk
surface.
Drive unit comes complete with cabinet, fan, switching power supply, cable, drive controller
and all else needed for host computer interface - software and computer host adapter card
extra.
HARD DRIVE UNIT: Rodime 203E (206) 5 1/4" rigid disk drive or equivalent
ROTATION SPEED: 3600 RPM
HEAD POSITIONING: Steel band low inertia two phase stepper system
TRACK TO TRACK STEP TIME: 8ms including head settling. 5us to 5ms pulse Heads
positioned to track 000 at power up
START/STOP: 10 seconds maximum to reach operating speed from power on
5 seconds for disk to stop rotating after power down
Solenoid operated mechanical brake provided for rapid spindle deceleration and
to preclude possibility of head or disk damage during shipping
CAPACITY: 40 MB unformatted (33 MB formatted) per drive
6.66 MB unformatted per surface
PLATTERS: 3
ACTIVE DATA SURFACES: 6
TRACK DENSITY: 600 TPI
CYLINDERS: 640
TRACKS: 3840
READ/WRITE HEADS: 6