Make your Paper Circuits projects interactive through the use of Transistors!
This add-on allows you to create projects in our Advanced Paper Circuits guides. Inside you'll find 40 resistors (100 ohm, 1,000 ohm, 5,000 ohm, and 10,000 ohm), 10 Light Detecting Resistors, and 10 2N3904 Transistors. Use them to create light and dark detecting circuits, touch activated circuits, and even moisture detecting circuits!