Make: More Electronics

Chapter 1. Experiment 1: Sticky Resistance

I want to start with some simple entertainment, because I think electronics should always contain an element of fun.

For this experiment, I’m going to use glue and cardboard. I realize that these materials are not commonly used in electronics books, but they’re going to serve two purposes. First, they will remind us that electricity isn’t necessarily confined to wires and boards. Second, the experiment will lead to a deepening understanding of that most fundamental and vital component, the bipolar transistor. And third, this experiment will lead into a general conversation about ions, resistance, and resistivity.

I realize that if you read Make: Electronics you already learned the basics about transistors, ...