[Tom] doesn’t much like breadboarding. He prefers to wire up prototypes with perfboard and solder point-to-point with enameled magnet wire. That may sound troublesome to some of you, but [Tom ...

pen and pencil and a neodymium magnet. Neodymium magnets are very strong so you'll need an adult to help you. Image caption, STEP 1 - COIL WIRE: Put the spool of wire on a pen. Place this between ...