O.K. I think I have it figured out. I'll have to
either get a cable for
the external drives (or make one). I was thinking that the 4869 was the
drive that would be used with the 5170, but it isn't. Was there a drive box
available from IBM for the 5150 (or was that the expansion chassis)?
ThAnX,
Use one of your TRS-80 external drive boxes.
But open it up and set the drive select to "B:", since the TRS-80 expected
drive select to be handled by the cable.