Re: Help, please...Need cable or pinouts for Amdek III Compact Floppy 3" drive

["macdog" <bigdog128@gmail.com>]

On Mar 23, 8:52 am, e...@FreeNet.Carleton.CA (Michael Black) wrote:
> "David Wilson" (mcs6...@gmail.com) writes:
> > On Mar 23, 4:05 pm, "William Garber" <willy4...@garberstreet.com>
> > wrote:
> >> True, but some say 3.25" when they mean 3.5",
> >> so he may have overlooked the fact that it
> >> actually is 3". Just making him aware.  :o))
>
> > I did miss the size :-)
> > Still, if there already is a standard FDD interface using a DC37
> > connector why would you invent another one? Should be easy to check
> > once I find the IBM pinout - about half the wires will be grounds.
>
> That won't necessarily tell you anything.  After all, just about any
> floppy disk drive had half the lines as ground, as did parallel printer
> cables and 50 pin SCSI cables and likely other things.  It won't
> really tell you a thing about what counts, which is what the non-ground
> connections are.
>
> Ground pins on the "non-ground" side, ie some ground pins intermingled
> with the side carrying other signals, would be a better indicator since
> the chance of pin 5  being ground in that case is less likely to be
> automatic.
>
> The drives themselves are likely to be a better indicator.  Open the
> box up, find the part number of the drive, and then find the pinout (which
> at this distance and considering the lack of success of those 3" drives,
> might be difficult).  Then trace those known lines to the connector
> coming out of the box.
>
> I'm not sure why you're asking in an Apple newsgroup.  I don't recall
> them being for that computer, and if they were, they would have required
> an interface card, since they aren't the stripped down drives that Apple
> used.  From what I recall the box had the drive(s) and the power supply,
> and you connected it to a floppy disk interface intended for the computer.
>  So they did sell the system as an adjunct to a number of systems.
>
>   Michael

The reason I asked in the Apple newsgroup is because (obviously now,
erroneously) I thought this was a drive to hook up to a //E.
Thank you for your polite reminder that this is an Apple newgroup.
Had I known this was for an IBM, I would not have bothered this
group.  Sorry.

Macdog.

Macdog