[Coco] Controller question

[jdaggett at gate.net]

On 29 Aug 2012 at 16:59, Keith Clark wrote:

> The original Color Computer floppy controller used a WD1793. The Coco3 
> dropped the 12v supply and the controller switched to the WD1773 as it 
> just needed 5v.

Keith

The use of the WD1773 predates the Coco3. More like late Coco1 and Coco2 switched from 
the WD1793 to the WD1773 probably as a cost reduction as the board is smaller and there is 
a smaller chip count. Also the need for timing adjustments. The original controller needed a 
oscope to properly setup.

james