Principles of the Transistor

Uses animation and demonstration to describe the development, uses, and theory of semi-conductors, germanium diodes, and transistors. Shows the early use of semi-conductors in crystal sets and explains conduction in conductors, semi-conductors, and insulators. Explains in detail how the germanium diode and the transistor function , with details concerning the crystal lattice, P- and N- type germanium and hole conduction. Each animated sequence of explanation is followed by a demonstration of the principle. Discusses advantages of transistors in computers, radios, and hearing aides.