another rathole :-( picked up some ST125 mfm drives and a multibus-ish floppy/mfm controller on ebay that came from a AR/Telenex 8600 Autoscope, which is a high-level protocol analyzer because it used an example of a hard disk controller chip I had never seen used before (Signetics 68454)
http://www.ebay.com/itm/282236398895 found the manual for the 7000 series on line, and just bought a whole 8600 Turbo http://www.ebay.com/itm/331829268184 so now I'm looking for software and manuals for that. fortunately, it looks like the software is still on the hard disk in the one I bought.
