Morse Code Key (and Sounder) Made from Steak Knife and Multi-tester

This is a simple but functional key and code practice oscillator for learning Morse Code made from a steak-knife and multi-tester. Few components and only takes half hour to construct. And when you are finished practicing Morse code you can put the knife back in the kitchen drawer.

Parts list:

block of wood


2 inch binder clip

4 small magnets

multi-tester or volt-meter that has resistance tester (ohm-meter) with sound

I basically got the idea to use a steak-knife from K4IBZ’s Beef Eater Special here:…

There are many homemade keys out there on the web. Even one made from just paper clips.

Here are a bunch of very innovative homemade keys:…


About jimd

Christian, ESL teacher, retired computer programmer, former US Army soldier, former Peace Corps Volunteer. Like to paint, build and fly rc airplanes, play guitar, ride unicycle, juggle, and hang out with my university students. Am currently residing in a foreign country but I do love America.
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