Morse Code Device for the Classroom

By Donna LaRoche

(with thanks to Jim and Martin )


Telegraph Key K-1

Piezo Sounder (Continuous)

Wire Connections

9 Volt Batteries or 9 Volt Battery Eliminator

Piece of Wood, screws, screwdriver



1. Connect the telegraph key and piezo sounder together.

2. You might choose to place a piece of tape on top of the  sounder to reduce the noise in your classroom!

3. Attach the 9 volt battery or 9 volt battery eliminator.

4. Mount and secure the device to a sturdy wooden platform.

5. Have fun practicing Morse Code!

©Natasha Bochkov, M.C.S., Martin Bayes, Ph.D., and Donna LaRoche, M.Ed.