> 3" (Amdek, Amstrad, etc.)
> 3.25" (Dysan)
> are hard to distinguish from 5.25"
On Fri, 20 Nov 2009, Philip Pemberton wrote:
If you can find me a drive and a pinout, I'll tell
you :)
I've got the drives, but no published pinouts. The pinout is essentially
identical to conventional 5.25" drives. ("SA400"?) I always used them
on unmodified PC cabling.
2.8M
"ED" "vertical recording" 3.5" 360 RPM, 1000K bits per second
I've got one of these drives somewhere.. an IBM thing with no pinout or
documentation. I know it's Shugart interface with a few extra pins added
(the ribbon cable provides both power and data IIRC).
Will your circuitry be able to handle the doubled data transfer rate?
I think that the first 34 pins are the same. I only have a few of those
drives, and they are many archeological layers deep. The pinout of the
ones that IBM used on the PS/2s (with the 6 extra pins for power) might be
in the AT "Options and Adapters" Tech Ref
--
Grumpy Ol' Fred cisin at
xenosoft.com