Date   : Sat, 06 Jan 1990 00:36:13 GMT
From   : van-bc!ubc-cs!alberta!atha!tech@ucbvax.Berkeley.EDU (Richard Loken)
Subject: 3-1/2" disc drives

I recently embarked on a project to put 3-1/2" 1.44 Mbyte wafer drives in my
dear old TRS80 Model II.  I randomly purchased 3 Panasonic drives and got out
my dentist pliers and got the pinouts and some jumper info from Matsushita.

The gentleman at Matsushita says there are a myraid of variations and he has
never heard of the one I have.  It seems to set all its options with cute
little
switches - but only six.  The man from Matsushita has not heard of this method
and he has not heard of half the options.  Something was said about unauthorized
importers and venders.  Two interesting options are:

       AT - PS2        (gag, yuck, my trash-80 may reject them)
       A - B

Any idea what these two do??

How do you terminate these little rice boxes?  I see not a hint of a termination
avenue.  I will install them and experiment and if I can't find a way then I
will build a tiny board ... but really there must be a way.

     *********     73
    **********     Richard Loken VE6BSV
   .      ****     
  ..      ****     Athabasca University
 ....     ****     Athabasca, Alberta Canada
..........****     tech@cs.AthabascaU.CA       {alberta|decwrl}!atha!tech