Date   : Tue, 21 Feb 1984 07:57:50 EST (Tuesday)
From   : Maj Bower (HQ USEUCOM) <bower@dca-ems>
Subject: disk drive/controller problem

   Has anyone successfully interfaced the Compu/time UFDC-1
controller (which may be the same as QT Systems) with the
Siemens Fdd-221-5 80 track double-sided drive?  I have two
such drives which work with the Versafloppy II and Jade
Double-D, but will do NOTHING on the UFDC-1.  Various
things such as adjusting terminating resistor packs have
had no effect.
   The only difference I have been able to find is that
the UFDC-1 uses a special data seperator chip where
others use op-amp based designs.  Losing the use of
a 784K drive on my portable system is painful.
   Can anyone help?

                                       Hal Bower
                                       Bower at DCA-EMS