I don't have all the spec's memorized, per se, but I do have one of the drives in my lap at the moment. It's an 8" 4-head drive with 256 cylinders. Nominal capacity, FM, raw, is 10+ MB, formats to 8MB under CP/M using 32 256-byte sectors per track. Rotates at 3125 rpm and uses a data rate of 4.34 Mbps. Spindle drive is 110VAC, while the stepper uses 24 volts. The board uses +5 for logic and optionally via jumper, -12 VDC or -5 VDC. The power is brought in via connectors and pinout identical to those on 8" FDD's. These make a great, and great-looking companion to a pair of HH 8" floppies, which work from the same supplies. Dick ----- Original Message ----- From: Bill Sudbrink <bills(a)adrenaline.com> To: <classiccmp(a)classiccmp.org> Sent: Thursday, September 14, 2000 1:50 PM Subject: Shugart 1004