25 Nov
2006
25 Nov
'06
10:04 p.m.
Ethan Dicks wrote:
On 11/25/06, Brad Parker <brad at heeltoe.com>
wrote:
I have a Unibus SMS board marked FD1100I on a hand-lettered label,
and SMS PE-HIP with an Intel 8008 and a Shugart FDC chip. I don't
remember which one.
I'd love to know how to use it. That Shugart chip implies it has a
lot more smarts than an RX02 controller. If it does Winchester too, so
much the better.
Pictures:
http://www.docsbox.net/.other/11-03/DSC00079.jpg
http://www.docsbox.net/.other/11-03/DSC00080.jpg
There are a 50-pin, a 40-pin, and a 30-pin header on it. I can scan
it Tuesday for a hi-res image if anyone's interested.
Err. I *assume* it's Unibus. It came in a non-functional PDP-11/04.
Doc
The one I have has a boot prom; I don't know
if it's rx01/02 compatible.
I can't guarantee your model (mine is a dual floppy), but AFAIK, all
of the SMS drives for DEC machines are at least RX01, if not RX02,
compatible. Moreover, most, if not all, of the SMS drives should be
able to take a totally blank floppy and format it (DEC RX01s can't
format a thing, and the RX02 can only re-write the data portion of the
track of a pre-formatted RX01 disk and make that part double-density,
thus, converting an RX01-K into an RX02-K).
There are other ways of starting with blank floppies (the RX01 format
is large-system IBM compatible, thus standard), but few options using
a DEC CPU. 
