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"