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Code Practice Oscillator Kit

Our Code Practice Oscillator is a great little device on which you can practice your Morse Code skills. It is simple to build and easy to use. All you need are two 3V coin batteries and your knowledge of Morse Code. Even if you are just beginning to learn Morse Code you'll probably find this practice oscillator is a handy way to practice timing and develop an ear for Morse Code.

The kit was featured at TechFest 2020 and proved to be easy to construct by hams of all ages.  Soldering is required so adult supervision is suggested for builders under age 12.

Kits are available for sale in our Mart.  Click here to purchase one.

Click here to download a PDF file containing instructions for constructing the kit. 

CPO Assembly Instructions

A schematic of the kit is available for download here.

CPO Schematic