xerox 820-II boot disk
dave06a at dunfield.com
Fri Aug 3 06:30:33 CDT 2007
> > I have directions on my site to make an adapter which should let
> > you connect one of the 8" drives to a 5.25" cable on a PC (don't
> > bother with the 820-II harness - just open up the disk box and
> > connect directly to the 50-pin connector on one of the drives).
> I was hoping to find someone who has already done this since I barely have
> the room to do so.
You shouldn't need a lot of additional space. The adapter consists of a
50-pin edge card connector (you can make this from a cut-down ISA connector
if you need), and the 34-pin connector salvaged from an old 5.25" drive
PCB. If your PC doesn't have one, you will also need a PC floppy cable
with a 5.25" drive connector. If you prefer, you could make the adapter
using a pin-header and connect directly to a 3.5" floppy cable.
You already have the 8" drives in an enclosure with power supply. You
pop the cover off, sit your PC beside it with it's cover off, and run
the floppy cable from the PC to one of the 8" drives.
Trickiest part is iirc the 820 has single-density on the system tracks
and many PCs can't do that.
Depending on where you are located, there may be someone nearby with an
8" <> PC setup who can make you the disk. (Where are you?)
dave06a (at) Dave Dunfield
dunfield (dot) Firmware development services & tools: www.dunfield.com
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