[Coco] Tandy Controllers

[Brian Blake]

Not much of an answer to your question, but, I've got an FD-500 and it's a
long one...

The 26-3022 used a different chip than any of the rest, which is why it can
be converted to use HD media.

If I remember correctly. the FD-500 and the 26-3029 are pretty much the same
beast.

And IRCC the FD-501 & 502 are the same, one (FD-501) has gold connectors the
other does not...



Brian


On Mon, Feb 21, 2011 at 9:37 PM, Steve Ostrom <smostrom7 at comcast.net> wrote:

> How many different disk drive controllers did Radio Shack/Tandy release?  I
> think there are at least 5.  Two long ones numbered 26-3022 and 26-3029, as
> well as three short ones numbered 26-3129 (FD500), 26-3131 (FD501) and
> 26-3133 (FD502).  Were there significant differences between each of these?
> Were they renumbered because of ROM differences?  I think the long vs. short
> had different power requirements (12v vs. 5 v?).
>
> -- Steve --
>
>
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