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<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><A
href="http://www.digikey.com/scripts/DkSearch/dksus.dll?Detail?Ref=187852&Row=106595&Site=US">http://www.digikey.com/scripts/DkSearch/dksus.dll?Detail?Ref=187852&Row=106595&Site=US</A></FONT></DIV>
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<DIV dir=ltr align=left><SPAN class=156000221-23052005><FONT face=Arial
color=#0000ff size=2>There's an example of a DB9 with mating-side 0.25" clinch
nuts. Those will let you capture the screws on a GPS
cable.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=156000221-23052005><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=156000221-23052005><FONT face=Arial
color=#0000ff size=2>BTW, I can recommend SF Cable. They've got good
prices, and I've always gotten fast shipping and good service from
them.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=156000221-23052005><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=156000221-23052005><FONT face=Arial
color=#0000ff size=2>Scott</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=156000221-23052005><FONT face=Arial
color=#0000ff size=2>N1VG</FONT></SPAN></DIV><BR>
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<FONT face=Tahoma size=2><B>From:</B> aprssig-bounces@lists.tapr.org
[mailto:aprssig-bounces@lists.tapr.org] <B>On Behalf Of </B>Keith
Kotch<BR><B>Sent:</B> Monday, May 23, 2005 11:36 AM<BR><B>To:</B> 'TAPR APRS
Mailing List'<BR><B>Subject:</B> RE: [aprssig] FW: D-sub connector
components<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">I did find this
supplier, <A
href="http://www.sfcable.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=24-968&Category_Code=dsubgenderchanger">http://www.sfcable.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=24-968&Category_Code=dsubgenderchanger</A><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">These are the kind of
backshells I’m looking for. Integral “clinch nuts” is the thing I don’t
see listed or don’t know for sure if that’s what I
want.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">The application I’ve
got is a KPC 3 tnc with a 25 pin female connector for the computer, or gps in
a standalone configuration case, and a 9 pin female connector on the
gps. An off-the-shelf null modem adapter is usually a 25 pin male to 9
pin female. A 25 pin male to 9 pin male null modem appears to be much,
much rarer and if the adapter type backshells are available, it’ll be just as
easy (arguably) to create my own custom adapters. Since I found a source
for the backshells as noted above, the next problem is locating the necessary
securing hardware. I need screws to screw the adapter onto tnc and nuts
on the 9 pin side of the adapter to capture the screws on the gps 9 pin
connector.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Keith,
KF4BXT<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<DIV>
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<P class=MsoNormal><B><FONT face=Tahoma size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">From:</SPAN></FONT></B><FONT
face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">
scott@opentrac.org<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B>
RE: [aprssig] FW: D-sub connector
components</SPAN></FONT><o:p></o:p></P></DIV>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">Digi-Key and Mouser
should both have all of those parts. I can suggest some part numbers for
the 9-pin connectors and backshells. I carry those on my own site as
well: <A
href="http://n1vg.net/opentracker/purchase.php">http://n1vg.net/opentracker/purchase.php</A></SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">The backshells come
with all the hardware. For the side connecting to the GPS cable, you
might want connectors with integrated clinch nuts. Digi-Key carries a
couple thousand d-sub connectors and they've got the best parametric search
around.</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">Let me know if you
find any good homebrew techniques for overmolding. I've done some stuff
with hot melt glue when necessary, but that's about it. I need some
custom molding myself - I've got to make cables for Motorola handhelds,
and the spacing between the 2.5 and 3.5 mm plugs is too small for separate
connectors. Mouser sells plugs designed for overmolding, but aside from
investing some serious money in tooling and injection molding, I don't know
how you'd use them.</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">Scott</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">N1VG</SPAN></FONT><o:p></o:p></P></DIV></BLOCKQUOTE></BODY></HTML>