Strange drive unit

From: Passer, Michael <>
Date: Wed Aug 25 08:24:59 1999

That is an MSD SD-2 dual drive. It was sold as a premium drive
for the Commodore 64, and supports either serial or IEEE-488
interfaces. It would work with a PET, as well, via the IEEE-488

One of its compelling features is its ability to copy a diskette
completely in its firmware with one command, and quickly. If you
would like to sell it, I would be interested :>.

Nice find!

--Michael Passer

-----Original Message-----
[]On Behalf Of Charles E. Fox
Sent: Wednesday, August 25, 1999 8:12 AM
To: Discussion re-collecting of classic computers
Subject: Strange drive unit

        I found this in one of my cupboards, don't know where or when I got it.

        Micro-systems development Inc. Dallas Texas
        Model SD-2

        Two TEC 51/4 floppy drives, Model FB501, mounted vertically

        Built in AC supply

        Rear panel has two 6 contact female DIN sockets and one 24 contact
connection similar to a Centronics printer, only smaller.

        The construction is generally similar to that used on Apple ][ drive
 although I suspect this might have something to do with a PET.

        Can any one enlighten me?

                                                        Charlie Fox

                                Charles E. Fox
                       Chas E. Fox Video Productions
                793 Argyle Rd. Windsor N8Y 3J8 Ont. Canada
        email Homepage
Received on Wed Aug 25 1999 - 08:24:59 BST

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