NO TOOLS OR SOLDERING REQUIRED! These "Electronic Science Labs" will
teach you about electronics from A to Z. With these all in one labs, you'll learn about electronic parts, how to read schematics, and wiring diagrams. All this while ...
No Batteries Required! Safe, Solderless, Educational and Fun Easy to
read Instructions Included Crystal Diode Converts RF to Audio Tune In Your Favorite AM Radio Stations Learn How Radios Work Includes Earphone For ages 10 and up