On Fri, 16 May 2014 12:30:55 -0400, "Michael A. Terrell"
wrote:


Tom Gardner wrote:

I had a huge struggle with soldering a couple of DB-9 connectors, my
vision and fine motor control just aren't what they used to be. And, I
only had to make 5 connections on the DB-9's, it took me close to an
hour. These are for a DRO, I've been using a break-out box until now on
the mismatched scales and display. Remember, the display bit the dust a
while ago.

I did have the connectors locked in a miniature vice but I couldn't
think of any other techniques that would help.


I hold them in a drill press vise, and tin the wires before assembly.
A little solder in the cups of the pins I need to use, and a drop of
liquid rosin flux over the solder. Then touch a hot soldering iron to
the solder on the pin and insert the pretinned wire. The flux allows a
clean flow, and a little IPA will clean it up when I'm done.

BTW, it isn't a DB-9, it is a DE-9. The second letter is the shell
size. The common 25 pin shell is a 'B'. The SVGA monitor plug is a
HDE-15.

http://en.wikipedia.org/wiki/D-subminiature

Interesting! Even when I was buying them for computers/cables I
built, they were always listed as DB-9s.


PS: Have you ever seen any of these?

http://www.project-parts.com/itempix/450-040A.jpg

Wow, 8-way mini-coax? Whassit for?

--
We cannot but pity the boy who has never fired a gun; he is
no more humane, while his education has been sadly neglected.
--Henry David Thoreau