TRS80 Model 1 question

18 Mar 2002

...
  48k Level II
with the Percom controller and drive. I don't have any disks  Is the percom
controller Single or Double density? 
I don't remember a Percom controller.  Was it a replacement for the RS
"Expansion Interface" (which included 1771 singel density)?

 But they did make a sandwich board to insert data separation with the
singel density 1771 RS controller, and they made the "Doubler" with added
a 179x double density to the 1771 single density RS controller.

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TRS80 Model 1 question