A textbook covering the design of transistors, amplifiers, receivers, oscillators, generators and digital circuits. Since the previous edition was published in 1981 the use of integrated circuits has become even more widespread and miniaturisation has reached the point where half a million components can be accommodated on a single silicon chip. In radio and television receivers and video recorders, for example, most of the functions are carried out by integrated circuits. Nevertheless there is still a role for discrete transistors, particularly where appreciable power output for high-voltage operation is required. There are, for example, 30 in a 1989 model colour television receiver and considerably more in a video recorder. Discrete transistors are also likely to be used in experimental work and in the early stages of design of electronic equipment. So there is still a need for information on the use of transistors in electronic circuits and this book is intended to provide it.