26 Sep
2014
26 Sep
'14
12:07 p.m.
I know I've seen this before, but I can't find it just now.
I need a wire wrap tool for qbus/unibus. What size for those pins?
Thanks.
26 Sep
26 Sep
12:40 p.m.
I know I've seen this before, but I can't find
it just now. I need a wire
wrap tool for qbus/unibus. What size for those pins?
I guess I'd like to know as well.... I have a bucket of wire wrap tools, and
they all fit just perfect for unibus wirewrapping. I just assumed there was
only was size.....
12:54 p.m.
On Fri, Sep 26, 2014 at 3:40 PM, Jay West <jwest at classiccmp.org> wrote:
There were two sizes I know of within use at DEC. The Qbus/Unibus pin
size is rather ordinary for 30ga WW wire. I just use any of the tools
I know I've
seen this before, but I can't find it just now. I need a wire
wrap tool for
qbus/unibus. What size for those pins?
I guess I'd like to know as well.... I have a bucket of wire wrap tools, and
they all fit just perfect for unibus wirewrapping. I just assumed there was
only was size..... from the 1970s, including the hand-held tool from Radio
Shack.
ISTR older single-sided DEC module blocks (R-series logic, etc) used a
heavier wire and a fatter pin.
-ethan
1:41 p.m.
On Sep 26, 2014, at 3:54 PM, Ethan Dicks <ethan.dicks at gmail.com> wrote:
On Fri, Sep 26, 2014 at 3:40 PM, Jay West <jwest at
classiccmp.org> wrote:
There were two sizes I know of within use at DEC. The Qbus/Unibus pin
size is rather ordinary for 30ga WW wire. I just use any of the tools
from the 1970s, including the hand-held tool from Radio Shack.
ISTR older single-sided DEC module blocks (R-series logic, etc) used a
heavier wire and a fatter pin.
I don?t remember those. But I remember the wire wrap on the IBM 1620. It used
rectangular pins, not square, and the wire was amazingly thick ? if I had to guess I?d say
24 gauge.
paul
I know
I've seen this before, but I can't find it just now. I need a wire
wrap
tool for qbus/unibus. What size for those pins?
I guess I'd like to know as well.... I have a bucket of wire wrap tools, and
they all fit just perfect for unibus wirewrapping. I just assumed there was
only was size..... 
1 p.m.
On Sep 26, 2014, at 3:40 PM, Jay West <jwest at classiccmp.org> wrote:
Telecom often uses larger posts (.035" square post, if memory serves, which
it might not). My "standard" (.025" square post, standard for IC socket
wire wrap posts and the like) worked fine on my H9270 backplane; I would
assume other DEC backplanes are the same.
- Dave
I know
I've seen this before, but I can't find it just now. I need a wire
wrap
tool for qbus/unibus. What size for those pins?
I guess I'd like to know as well.... I have a bucket of wire wrap tools, and
they all fit just perfect for unibus wirewrapping. I just assumed there was
only was size..... 
1:09 p.m.
On Fri, 26 Sep 2014, Jay West wrote:
30, 28, 26, 24, and 22 AWG are all common sizes in the industry (and still
used in telecommunications). What size wire did they use?
I know I've seen this before, but I can't
find it just now. I need a wire
wrap tool for qbus/unibus. What size for those
pins?
I guess I'd like to know as well.... I have a bucket of wire wrap tools, and
they all fit just perfect for unibus wirewrapping. I just assumed there was
only was size..... 
3:03 p.m.
I have hand wrap tools for wiring telco "400 type" card cages; I believe
these are set up to work with ~26 ga wire +/- 2. I think the pin size on
one of my Wescom or Tellabs 400 shelves is approximately the same size as
on a DEC H927x? I will check and write back if I find a gross difference in
size between the two.
Best,
Sean
On Fri, Sep 26, 2014 at 4:09 PM, Tothwolf <tothwolf at concentric.net> wrote:
On Fri, 26 Sep 2014, Jay West wrote:
I know I've seen this before, but I can't find it just now. I need a wire
wrap tool for qbus/unibus. What size for
those pins?
I guess I'd like to know as well.... I have a bucket of wire wrap tools,
and
they all fit just perfect for unibus wirewrapping. I just assumed there
was
only was size.....
30, 28, 26, 24, and 22 AWG are all common sizes in the industry (and still
used in telecommunications). What size wire did they use?
3:09 p.m.
I take that back, I just peeked and the pins ona DEC H927x are definitely
smaller than those on a 6-slot Wescom card cage. Maybe 30-50% smaller on a
side? I don't have a caliper handy that isn't all greasy (sorry). If I was
going to wrap the DEC backplane I think I'd go for 28, maybe 30 ga.
Best,
Sean
On Fri, Sep 26, 2014 at 6:03 PM, Sean Caron <scaron at umich.edu> wrote:
I have hand wrap tools for wiring telco "400
type" card cages; I believe
these are set up to work with ~26 ga wire +/- 2. I think the pin size on
one of my Wescom or Tellabs 400 shelves is approximately the same size as
on a DEC H927x? I will check and write back if I find a gross difference in
size between the two.
Best,
Sean
On Fri, Sep 26, 2014 at 4:09 PM, Tothwolf <tothwolf at concentric.net> wrote:
On Fri, 26 Sep 2014, Jay West wrote:
I know I've seen this before, but I can't find it just now. I need a
30, 28, 26, 24, and 22 AWG are all common sizes in the industry (and
still used in telecommunications). What size wire did they use?
wire
wrap tool for qbus/unibus. What size for those pins?
I guess I'd like to know as well.... I have a bucket of wire wrap tools,
and
they all fit just perfect for unibus wirewrapping. I just assumed there
was
only was size.....
27 Sep
27 Sep
4:23 a.m.
On Sep 26, 2014, at 2:09 PM, Tothwolf <tothwolf at
concentric.net> wrote:
On Fri, 26 Sep 2014, Jay West wrote:
30, 28, 26, 24, and 22 AWG are all common sizes in the industry (and still used in
telecommunications). What size wire did they use?
My 11/34 is 30ga wire...
I know
I've seen this before, but I can't find it just now. I need a wire
wrap
tool for qbus/unibus. What size for those pins?
I guess I'd like to know as well.... I have a bucket of wire wrap tools, and
they all fit just perfect for unibus wirewrapping. I just assumed there was
only was size.....
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8 comments
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participants (7)
-
ethan.dicks＠gmail.com -
fraveydank＠gmail.com -
jwest＠classiccmp.org -
paulkoning＠comcast.net -
roeapeterson＠gmail.com -
scaron＠umich.edu -
tothwolf＠concentric.net