ISO Xebec S1410A fw #104792 or 104793

Eric Smith spacewar at
Tue Nov 15 14:59:09 CST 2016

On Tue, Nov 15, 2016 at 1:06 PM, Al Kossow <aek at> wrote:

> The two WD machines that used these that I can think of were in the
> Kaypro 10 and one of the TRS-80s, maybe the Xerox 820-II?

Radio Shack used a slightly modified version of the WD1000 controller
board, which added a write-protect feature, for the TRS-80 models 1, 2, 3,
4, 16, and 6000.  The controller was mounted in the master drive.

The same basic WD1000 or WD1001 controller design, with customization, was
used in the Fortune 32:16 and ACD HDC-1001.  Probably others as well.

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