On Thu, 5 Feb 2004 11:39:30 -0600 "Henry Kolesnik"
wrote:

But before doing that I thought I'd recheck the 10K ohm Gm
bridge resistors, pot and as I was connecting my Fluke to the10K resistor
lead I could see it was wrapped around the post but not soldered, same for
all of them.

Very nice going, but I'm not able to see your photos (server doesn't
have that newsgroup) so could you describe for the rest of us what
this connection looked like?

thanks,

-
-----------------------------------------------
Jim Adney
Madison, WI 53711 USA
-----------------------------------------------

Lou
Under the black cover over the matrix swtich there are 3 black bakelite
slabs (3.5" X 4.5" X ~1/4") with 187 holes sandwiching 185 pins. With the
black cover removed (2 screws) and the card plunger pushed in and you'll
see that the sandwich "floats" on four 8-32 threaded posts. Each of these
posts has 2 nuts sandwiching the slab sandwich. The position of the lower
4 nuts (I called these jam nuts) determines how far in the 185 pins go into
their female counterpart where there is no hole in the card. If there's a
hole in the card the pins must not make contact with their female
counterpart, and this clearance is about the thickness of a dime. In
addtion all these jam nuts must be on the same plane so that the sandwich
is orthagonal and will not bind so it can move smoothly.
A pix would have been easier but the batteries are being charged. Let me
know if you still need a pix.
73
hank wd5jfr

"Lou deGonzague" wrote in message
...
This was a very interesting post Henry, I have one of these and it seems
to
be working OK. I have everything except the cal cell is dead. I would like
to see a pic of those jam nuts that you shouldn't touch if possible as I
thought about cleaning the card reader.
"Henry Kolesnik" wrote in message
...
In this case the "assembler" needed flogging!

hank wd5jfr
"Jeffrey D Angus" wrote in message
...


Henry Kolesnik wrote:

It's fixed, a new day respite helps.

Which just undescores what I've been telling my techs all
along. VERIFY everything before you start flogging the
assembly.

Jeff

--
"They that can give up essential liberty to obtain a little temporary
safety deserve neither liberty nor safety." Benjamin Franklin
"A life lived in fear is a life half lived."
Tara Morice as Fran, from the movie "Strictly Ballroom"

Thanks Henry, I see what you are saying. The pins come up to about an 1/8'
from the top of the plate. One thing I just noticed, there is no pin in the
17A position, bottom left corner spot. I wonder if mine is missing or it
was made that way?
"Henry Kolesnik" wrote in message
...
Lou
Under the black cover over the matrix swtich there are 3 black bakelite
slabs (3.5" X 4.5" X ~1/4") with 187 holes sandwiching 185 pins. With the
black cover removed (2 screws) and the card plunger pushed in and you'll
see that the sandwich "floats" on four 8-32 threaded posts. Each of these
posts has 2 nuts sandwiching the slab sandwich. The position of the
lower
4 nuts (I called these jam nuts) determines how far in the 185 pins go
into
their female counterpart where there is no hole in the card. If there's a
hole in the card the pins must not make contact with their female
counterpart, and this clearance is about the thickness of a dime. In
addtion all these jam nuts must be on the same plane so that the sandwich
is orthagonal and will not bind so it can move smoothly.
A pix would have been easier but the batteries are being charged. Let me
know if you still need a pix.
73
hank wd5jfr

"Lou deGonzague" wrote in message
...
This was a very interesting post Henry, I have one of these and it seems
to
be working OK. I have everything except the cal cell is dead. I would
like
to see a pic of those jam nuts that you shouldn't touch if possible as I
thought about cleaning the card reader.
"Henry Kolesnik" wrote in message
...
In this case the "assembler" needed flogging!

hank wd5jfr
"Jeffrey D Angus" wrote in message
...


Henry Kolesnik wrote:

It's fixed, a new day respite helps.

Which just undescores what I've been telling my techs all
along. VERIFY everything before you start flogging the
assembly.

Jeff

--
"They that can give up essential liberty to obtain a little
temporary
safety deserve neither liberty nor safety." Benjamin Franklin
"A life lived in fear is a life half lived."
Tara Morice as Fran, from the movie "Strictly Ballroom"

There's 187 holes with 185 contact pins. A17 has a threaded guide post that
sets the gap (about a dime) between the two female connectors that the pins
connect when there's no hole in the card. H17 doesn't have a pin nor does
it have the lower female solder connection, I guess they didn't need it.
Perhaps when someone has or will find a need for the 186th pin we'll have to
find an extra pin and a lower female contact and a place to route and
terminate the wires.
73
hank wd5jfr

"Lou deGonzague" wrote in message
...
Thanks Henry, I see what you are saying. The pins come up to about an 1/8'
from the top of the plate. One thing I just noticed, there is no pin in
the
17A position, bottom left corner spot. I wonder if mine is missing or it
was made that way?
"Henry Kolesnik" wrote in message
...
Lou
Under the black cover over the matrix swtich there are 3 black bakelite
slabs (3.5" X 4.5" X ~1/4") with 187 holes sandwiching 185 pins. With
the
black cover removed (2 screws) and the card plunger pushed in and
you'll
see that the sandwich "floats" on four 8-32 threaded posts. Each of
these
posts has 2 nuts sandwiching the slab sandwich. The position of the
lower
4 nuts (I called these jam nuts) determines how far in the 185 pins go
into
their female counterpart where there is no hole in the card. If there's
a
hole in the card the pins must not make contact with their female
counterpart, and this clearance is about the thickness of a dime. In
addtion all these jam nuts must be on the same plane so that the
sandwich
is orthagonal and will not bind so it can move smoothly.
A pix would have been easier but the batteries are being charged. Let
me
know if you still need a pix.
73
hank wd5jfr

"Lou deGonzague" wrote in message
...
This was a very interesting post Henry, I have one of these and it
seems
to
be working OK. I have everything except the cal cell is dead. I would
like
to see a pic of those jam nuts that you shouldn't touch if possible as
I
thought about cleaning the card reader.
"Henry Kolesnik" wrote in message
...
In this case the "assembler" needed flogging!

hank wd5jfr
"Jeffrey D Angus" wrote in message
...


Henry Kolesnik wrote:

It's fixed, a new day respite helps.

Which just undescores what I've been telling my techs all
along. VERIFY everything before you start flogging the
assembly.

Jeff

--
"They that can give up essential liberty to obtain a little
temporary
safety deserve neither liberty nor safety." Benjamin Franklin
"A life lived in fear is a life half lived."
Tara Morice as Fran, from the movie "Strictly Ballroom"

On Thu, 05 Feb 2004 20:50:02 -0600 Jim Adney
wrote:

On Thu, 5 Feb 2004 11:39:30 -0600 "Henry Kolesnik"
wrote:

But before doing that I thought I'd recheck the 10K ohm Gm
bridge resistors, pot and as I was connecting my Fluke to the10K resistor
lead I could see it was wrapped around the post but not soldered, same for
all of them.

Very nice going, but I'm not able to see your photos (server doesn't
have that newsgroup) so could you describe for the rest of us what
this connection looked like?

Thanks to those who sent photos. Those "posts" are more commonly
called "turrets", I believe.

Finding these missed solder joints must have given you a VERY well
deserved good feeling. Congratulations.

-
-----------------------------------------------
Jim Adney
Madison, WI 53711 USA
-----------------------------------------------