TRS-80 floppy drive compatibility
ard at p850ug1.demon.co.uk
Sat Aug 27 18:28:04 CDT 2005
> I have a Tandy CoCo that had been used with 2 floppy drives.
> Can I just unplug the drives and use them with a Model I, III, or IV ??
I certainly used a CoCo floppy drive unit (the FD501 one I think) on my
Model 3 for a time, so it should work on the Model 4 too (same disk
controller). And I see no good reason why it wouldn't work on a model 1.
I even used one of those cheap mechanical printer swtichboxes (with 36
pin Blue Ribbon connectors) to switch the drives between the CoCo and the
Model 3. Made up a couple of cables with edge connectors on one end, Blue
Ribbon on the other, and crimped a Blue Ribbon plug onto the cable coming
out of the drive box. Looking at the mess of wiring inside the switchbox
told me it shouldn't work (noise everywhere!), but amazingly I had no
More information about the cctalk