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K10+ Iambic Keyer Project

This is a keyer that I build to attach to the back of my Bencher iambic paddle. It is based on the K1EL K10+ Iambic Keyer chip (which is a preprogrammed PIC intelligent controller embedded microcontroller). You can see the features of the chip and download the instruction manual with the schematics that I used from there. The K10+ Keyer has more features than the K1EL K8 "open source" code I used for the LARC club K8 keyer project. Click on the pictures below for full sized.

Here are the parts ready to go, and the project box drilled and painted (everything was dry fitted before drilling and painting):

Here is the keyer pretty much assembled, before final mounting of the circuit board and rear panel earphone and key jacks:

Everything mounted in final locations. It was a pretty tight fit, and had to be careful not to pinch any wires on closeout:

The keyer mounted on the back of the Bencher paddle. I use 2 of the screws under the paddle to hold the box on with a flat piece of aluminum (you can kind of see it in the first picture.

I am pretty happy the way it turned out, a lot of people have commented that it looks commercial. The top 4 buttons are 12, 15, 18 and 20 wpm presets, and the bottom 4 are command/memory 1, memory 2, memory 3 and memory 4. As the functions are easy to remember I left them unlabelled for an uncluttered look.

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