-------------- Original Message: Date: Sun, 9 Dec 2012 00:59:51 -0600 From: Adrian Stoness <tdk.knight at gmail.com> http://farm8.staticflickr.com/7250/7547228432_e981da5a28_b.jpg -------------- Reply: I've still got a couple of those drives from a Redactron WP, a dual-drive version of IBM's MC/ST; have never tried to do anything with them and certainly don't know anything about the IBM interface or protocol, but the drive itself is kind of like a floppy, only linear. The usual read/write heads, a solenoid (12V IIRC) to step from track to track, and a motor drive to actually move the card in and out to read/write it. Should make an interesting project; you could even put in some photocells and turn it into a punched or mark sense card reader... m