Starting from what level of understanding? The old Radio Shack 200-in-1 electronics kits are informative and easy to use. They're designed to teach the fundam

Starting from what level of understanding? The old Radio Shack 200-in-1 electronics kits are informative and easy to use. They're designed to teach the fundamentals; capacitance, resistance, logic (74-series) gates, volts/amps...