Connecting Two Keys to the KX3

When operating in the field, I often like to alternate between a straight key for SKCC contacts and paddles for everything else. I found a quick and easy way to do this, courtesy of an excellent article by Rich AG6QR.

In the past, I would sometimes run an external keyer and connect a straight key in parallel with the keyer’s output. I have often used this as a way to use both computer keying and paddles during Field Day. I have also resorted to putting the CW KEY1 jack into the straight key mode and turning my Palm Mini paddles on their side to simulate a straight key. I could have used the Elecraft paddles designed for the KX3 but that arrangement isn’t very comfortable for me.

I did some searching and found a neat little adapter on the Pignology website. Unfortunately, at the current time, they aren’t accepting orders. A little more searching produced AG6QR ‘s article, which provided a perfectly workable solution. Best of all, I had everything I needed in my junk box.

Inspired by Rich’s article, I assembled a two-pin, female header connector (with standard 0.1-inch spacing) by crimping on a short length of two-conductor wire. On the other end, I soldered on an in-line 1/8-inch stereo jack. (I connected to the tip and sleeve terminals, leaving the ring terminal open.)

This is the 2-pin female header connector. It’s an Amphenol part but, unfortunately, I don’t have the specific part number.
This is the 2-pin female header connector. It’s an Amphenol part but, unfortunately, I don’t have the specific part number.

After setting the CW KEY2 jack to the “HAND” setting, I connected my header connector to the two right-most pins on the front connector and a straight key to the stereo jack. Voila! It worked just fine. As is my usual practice, I used a little Goop sealant/adhesive to add a little extra strain relief and make the connectors more rugged for field use.

This is the straight key adapter connected to my KX3.
This is the straight key adapter connected to my KX3.

So until Pignology reopens, I have a great (cheap) solution for simultaneously connecting a straight key and paddles. Be sure to check out AG6QR’s page for a more detailed description (and better photography).

72, Craig WB3GCK

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