Radio Shack, 1975. — 99 p.
Enjoy building the projects described in this Radio Shack manual: Silicon Rectifier Light Dimmer, Silicon Diode DC Motor Reverser, Silicon Diode Voltage Multiplier Circuits, Zener Diode Voltage Regulator, Zener Diode Waveform Clipper, LED Flasher, DC SCR Motor Speed Controller, TRIAC Light Dimmer.