Ward C. Travis (travis@cluracan.org) wrote:
: All right, I found a DuoDisk and it's in excellent shape. Problem is, I
: sold my original Apple ][ over a decade ago back when the hip-happening
: disk was still the Disk ][. So I've never seen a DuoDisk interface in my
: life. Anyone who can point me at a good FAQ about this, or describe what I
: need to get the DuoDisk up and running on an Apple ][+, will be thanked
: massively. If it turns out that the DuoDisk is meant for the Lisa or only
: for the /// systems, then, well tell me and I'll thank you for that :-) If
: it's a parallel interface or serial interface, I'm in search of a
: 'driver'... I haven't opened it up yet beyond dusting it and seeing the
: 2003s in there, so I haven't really looked at its innards.
The DuoDisk, when connected to a ][, "looks" like a pair of Disk ]['s to
the computer. The interface card is identical to a Disk ][ interface,
except that instead of the two 20-pin connectors, there is a short ribbon
cable leading to a single DB-19 connector mounted on the back of the
computer case. You do not need specifically a DuoDisk adapter...any 5.25"
Apple disk adapter (as for the UniDisk 5.25, for instance) will work.
Likewise, you can use a Disk ][ interface card, but that requires an
adapter cable. I hate to put him on the spot, but David Empson the Apple
][ Guru has an extensive file describing how to do this.
--Dave Althoff, Jr.
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