[Coco] Drive controller pics

[Bruce W. Calkins]

No pictures, but the 26-3029 and FD-500 were in the long case.  The FD-502 
and FD-502 were in the short case.  The FD-500 and FD-501 had "gold" plated 
contacts.  I would have to check on the FD-502, but I seem to recall they 
went back to tin contacts.  The FD-502 is the only Tandy controller that has 
a 28 pin ROM socket.  It is not fully addressed as stock though.  If they 
are not Tandy/Radio Shack disk controllers then all bets are off.

Bruce W.

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----- Original Message ----- 
From: "Bill"

>I have several (3 actually) drive controllers that are in new cases with no
> markings as to what controller they are. They pop up with Disk Extended
> Color Basic 2.1 (or 2.0), and I don't know if they are FD500, FD501, or
> FD502.
>
> Does anyone have a link to the pictures of each of the drive controller
> boards? I could compare them and judge which they really are.
>
> Thanks