Hands-on electronics experiments to learn the fundamental concepts and basic electronic components. 40 fun-filled activies assembling electronic experiments. You will work with resistors, diodes, SCR, speaker, capacitors, transistors, 555 timer, switches, LEDs, and jumper wires. You will build alarms, night light, continuity tester, morse code oscillator, insanity alarm, electronic organ, railroad lights, & much more!.