1 Dec
2011
1 Dec
'11
4:59 p.m.
I've been more seriously contemplating my QBUS multi-purpose card idea now that one of
my other major projects is nearly done. I've been unable to find any official or even
quasi-official mechanical specs for DEC cards (QBUS, UNIBUS, etc). I'm obviously
looking in the wrong places, since there's a wide degree of uniformity; I'm
looking for things like board outlines, edge bevels, component clearances and the like.
The electrical specs are in quite a few places, so I'm not worried about that.
Interestingly enough, my Douglas CAD software for my old Mac has DEC card outline
templates pre-stored. However, I'm not even entirely sure Douglas makes PCBs anymore,
and I imagine they can't beat my preferred board house on price (I'd love to be
wrong).
- Dave
1 Dec
1 Dec
11:26 p.m.
David Riley [fraveydank at gmail.com] wrote:
I've been more seriously contemplating my QBUS
multi-purpose
card idea now that one of my other major projects is nearly
done. I've been unable to find any official or even
quasi-official mechanical specs for DEC cards (QBUS, UNIBUS,
etc). I'm obviously looking in the wrong places, since
there's a wide degree of uniformity; I'm looking for things
like board outlines, edge bevels, component clearances and
the like. The electrical specs are in quite a few places, so I'm not
worried about that.
EK-BA200-DG-001 BA200 Series Module Design Guide.
That may cover things you don't need (like the "S" handles etc.)
but I expect that the physical specs for the board are the same.
Antonio
arcarlini at iee.org
5 Dec
5 Dec
10:44 a.m.
In article <083395875B27429087BB3FFE5DDD392C at ANTONIOPC>,
<arcarlini at iee.org> writes:
EK-BA200-DG-001 BA200 Series Module Design Guide.
<http://manx.classiccmp.org/mirror/antonio/ek-ba200-dg-001.pdf>
--
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2 Dec
2 Dec
12:06 a.m.
On Thu, 1 Dec 2011 19:59:44 -0500
David Riley <fraveydank at gmail.com> wrote:
I've been unable to find any official or even
quasi-official mechanical
specs for DEC cards (QBUS, UNIBUS, etc).
IIRC I saw it somewhere in one of these
PDFs:
http://www.bitsavers.org/pdf/dec/unibus/UnibusSpec1979.pdf
Here it is, page 90:
http://www.bitsavers.org/pdf/dec/pdp11/handbooks/PDP11_BusHandbook1979.pdf
There are other interresting things hiden, like:
http://www.bitsavers.org/pdf/dec/unibus/UnibusTroubleshooting.pdf
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10:59 a.m.
From: David Riley; Thursday, December 01, 2011 4:59 PM
I've been more seriously contemplating my QBUS
multi-purpose card idea now
that one of my other major projects is nearly done. I've been unable to find
any official or even quasi-official mechanical specs for DEC cards (QBUS,
UNIBUS, etc). I'm obviously looking in the wrong places, since there's a wide
degree of uniformity; I'm looking for things like board outlines, edge bevels,
component clearances and the like. The electrical specs are in quite a few
places, so I'm not worried about that.
Board outlines can be found at the front of various Logic Handbooks. They
only contradict each other a little bit :-). Likewise component clearances.
I haven't seen the edge bevel specified anywhere, but it isn't very critical
either.
Interestingly enough, my Douglas CAD software for my
old Mac has DEC card
outline templates pre-stored. However, I'm not even entirely sure Douglas
makes PCBs anymore, and I imagine they can't beat my preferred board house on
price (I'd love to be wrong).
My Eagle CAD libraries have card outlines, edge connectors, and even
many of the obsolete parts. You can find them at:
http://www.so-much-stuff.com/pdp8/cadlib.html
I should really try get around to updating the copies there. If you plan to
use them (or see something important missing) let me know offlist and I'll
see what I can do.
Vince
11:15 a.m.
On Dec 2, 2011, at 1:59 PM, Vincent Slyngstad wrote:
I'll take a look. I don't use EAGLE, but I'll see if they're exportable
to anything else (even something human-readable).
From: David Riley; Thursday, December 01, 2011 4:59
PM
Board outlines can be found at the front of various Logic Handbooks. They
only contradict each other a little bit :-). Likewise component clearances.
I haven't seen the edge bevel specified anywhere, but it isn't very critical
either.
That's a good place to look, I hadn't found those yet. I'm assuming a
standard 30 degree bevel should do.
Interestingly
enough, my Douglas CAD software for my old Mac has DEC card
outline templates pre-stored. However, I'm not even entirely sure Douglas
makes PCBs anymore, and I imagine they can't beat my preferred board house on
price (I'd love to be wrong).
My Eagle CAD libraries have card outlines, edge connectors, and even
many of the obsolete parts. You can find them at:
http://www.so-much-stuff.com/pdp8/cadlib.html I should really try get around to updating the copies
there. If you plan to
use them (or see something important missing) let me know offlist and I'll
see what I can do.
Thanks! I might give you a buzz.
Thanks also to everyone else who pointed out the bits that I missed in the manuals I
already looked through; perhaps maybe I just need to read slower. :-)
- Dave
11:30 a.m.
From: David Riley; Sent: Friday, December 02, 2011 11:15 AM
On Dec 2, 2011, at 1:59 PM, Vincent Slyngstad wrote:
If you need them exported, I believe there's a way to export things as
scripts, which when fed back to Eagle, will re-create the library. I have
used it to back-port stuff from Eagle 5 to Eagle 4. Anyway, you'd end
up with plain-text commands to draw the thing, which you could then
massage in Perl or whatever to be what your stuff needs.
Vince
My Eagle CAD libraries have card outlines, edge
connectors, and even
many of the obsolete parts. You can find them at:
http://www.so-much-stuff.com/pdp8/cadlib.html
I'll take a look. I don't use EAGLE, but I'll see if they're exportable
to
anything else (even something human-readable).
4549
days inactive
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days old
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