Soldering Kit (for experiments 12 through 14). This kit contains the parts needed for Make: Electronics Second Edition by Charles Platt. Make: Electronics, 2Ed by Charles Platt : From Maker Shed Make: Electronics, 2Ed by Charles Platt : From Barns & Noble This is a completely self-contained kit enabling you to do the soldering exercises in the book, culminating with the pulsing-glow circuit described in Experiment 14. You do not need to own any other kit to use this one. You will have to buy soldering equipment, and a multimeter will be extremely useful. A 9V battery is necessary but not included. Contains the following components and quantities: (4) Generic red LEDs (1) Connector for 9V battery (3) 2N2222 transistors (2 feet of each) Hookup wire in three colors (1) Rosin-core solder (1) a selection of heat-shrink tubing (1 large, 2 small) copper alligator clips (1) one piece of unplated perforated board Necessary resistors and necessary capacitors for the experiments listed.