内容简介：
This book aims to provide a basic working manual for hobbyists and other amateurs with little or no previous knowledge or practical experience of electronics. It describes and illustrates the circuits for nine different transistor radios. Each one is simple to make, and should give good listening results through headphones. Most can also be adapted to work through loudspeakers. Special features include: Layouts and step-by-step plans for each circuit All circuits also shown in complete 'circuit diagram' form Helpful tips on getting the set to work and to improve performance