Re: I assume this is not a IIc external drive (M0131)

[dempson@actrix.gen.nz (David Empson)]

BLuRry <brendan.robert@gmail.com> wrote:

> On Aug 25, 3:25 am, oz390gta <oz390...@gmail.com> wrote:
> > Correct me if I am wrong but I don't think this works on a IIc, seller
> > claims that the person that tested it for him stated it worked on the
> > IIc he is selling in another auction. I am OK if it doesn't but would
> > be interested if it really did work.
> >
> > http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=220658260819&ss...
> >
> > If it doesn't work on a IIc, could the internal mechanism be used to
> > replace my broken 3.5" External Drive (A9M0106) mechanism?
> 
> No eject button.  Smells like an old mac classic drive to me.  Apple //
> c ROM 0 supports UniDisk, but I seem to remember the UniDisk drive
> having an eject button to the right of the disk slot.

This site is helpful:

http://www.vintagemacworld.com/drives.html

The model number is a giveaway: if it starts with M it is a Mac-specific
product.

You cannot use the Mac 400K or 800K drive (without eject button) on an
Apple II, with the exception of a Universal Disk Controller card.

It certainly wouldn't work on a IIc, because the IIc (prior to the IIc+)
doesn't support a "dumb" Apple 3.5 drive, only the "smart" UniDisk 3.5
(which contains a microprocessor and implements the SmartPort bus
protocol).

In theory the mechanism should be the same as the one inside an Apple
3.5 Drive or UniDisk 3.5 (the difference is in the bridge board), but I
saw mention here recently that there were different generations of
mechanism, so tread carefully.

-- 
David Empson
dempson@actrix.gen.nz