17 Jan
1998
17 Jan
'98
10:53 a.m.
Tim,
I'm afraid I screwed up. I finally found some other numbers on the
board. I don't know why I missed them before. I think this number is the
right one. It says "L2007" and "50-18290-02 A1". I counted the
memory ICs
on the board. There's 144 of them and they look like 1 Meg chips!
The board is roughly 10 1/2 x 8 1/2" in size and has stamped metal pull
tabs with no markings. I scanned one board and posted a picture of it at
"http://www.intellistar.net/~rigdinj/dec.jpg" If you want to see what it
looks like.
Joe
At 08:48 AM 1/17/98 -0800, you wrote:
OK, those markings do make sense. But you're reading them off the
PC board, not off the handles, right? The numbers we're more interested
in would be on the "pull" handles on the edge of the board. If
a Q-bus or Unibus board, the handles will either be:
1. Maroon plastic, with a stamped M-number on one of the handles.
(Unless the handle broke off!)
2. A metal stiffener with ribs, with the M-number stamped onto one
of the ribs.
What's the physical size of the board? I think Bruce and I have been
assuming that's a Unibus or Q-bus card. But it could be a special-
purpose memory board for, say, a Vaxstation 3100.
Tim.
> > The numbers you're reading off for the
boards don't make any sense. DEC
> >numbers are typically a single letter, usually M, followed by four digits.
> >Look on the ejector handles and the card bracket. If the board was not
made
by DEC, it may not have this marking.
I can't find any number that starts with M. One card is marked " L P W
R digital GS-2 34888-4909" across the top edge. The second card is
marked " L P W R digital GS-2 03789-6028" across the top edge. But
both cards look the same. The other number is on a paper label. They have
a LOT of ICs on them marked "TC511000AJ-10". And there is a VERY large IC
near the center of the board. There is also a red and yellow LED on the
top edge.