21 May
2000
21 May
'00
1:02 p.m.
On May 21, 11:34, Jay West wrote:
A friend called me about a cpu cabinet sitting next to
a dumpster. I
would
like some background and identification on this system
if anyone knows.
At first blush I didn't think it would be
interesting, but it looks like
an
unibus system; it also had some M8043 and M8017 cards
in it so it must be
something DECish?
Well, those are Q-bus... Why do you think it looks like a Unibus? Is it
hex wide?
Four boards #20033 - each has a tiny 4 pin connector
and a tiny coax type
connector (much smaller than 10b2). Main chip is N8X305N
I've seen N8X305N somewhere recently, but I can't remember what it is :-(
It's a Signetics part, if you want to search for it.
one #70201 which obviously went to external devices -
two 50 pin headers
which end in same connector 11/23 uses to go to external RD52's
Might be a Pertec-style tape interface?
Plessey Peripheral Systems board with 50-pin berg
connector #703755
That sounds like a Plessey (or General Robotics) RXV21 emulator. If so, it
connects to one or two 8" drives with industry-standard SA800-type
interface, and it will handle double-sided drives (a la 'RX03') too.
Sorry, I can't check the number as mine's inaccessible right now. Any
other distinguishing marks?
--
Pete Peter Turnbull
Dept. of Computer Science
University of York