jeff.kaneko at juno.com wrote: About the 1986-88 time frame. Well the machine's drives are ST-506 MFM drives controled by a WD2010, though oddly with 16 sec/trk rather than the more normal 17, that most PC MFM interfaces used. It also has a QIC-02 60M tape drive, and a 1.2M Floppy. Yeah I have an external disk box for the RM-186 that as I believe a Xybec SASI to ST-506 board in it, I tried getting that to talk to a moden controler and it would not, though I have recently discovered that Adaptec SCSI cards don't seem to like really old drive like this which may have been part of the problem in that case. Indeed, though it is labeled as SCSI on the back of the machine, and I remeber there being a similar looking SCSI chip in there to the ones in the Sun-3 systems I used to own. Cheers. Phill. -- Phill Harvey-Smith, Programmer, Hardware hacker, and general eccentric ! "You can twist perceptions, but reality won't budge" -- Rush.