دانلود کتاب Audio Circuits and Projects

This book is one of a series of electronics hobbies books for electronics constructors at all levels. Almost 100 circuits are described with constructional details given where necessary. The circuits range from those with no integrated circuits or transistors to those with over 15 ICs all are within the capabilities of the beginner to electronics building. The first two chapters include some theoretical introduction to the world of audio electronics, where the definitions and jargon are explained. Many hints on construction techniques are also given and the reader is well advised to read these two chapters before plunging into the circuits in the rest of the book. Hints on the purchase of hi-fi equipment and components are included. The circuits of chapters 3 to 7 can be considered as individual modules which can be interlinked to form more complex circuits if desired. A preamplifier and three filters from chapter 3, a power amplifier from chapter 4, a phasing circuit and automatic fade circuit from chapter 5, a sound-to-light unit from chapter 6 and a power supply from chapter 4 together produce a fully comprehensive disco unit with far more facilities than many commercial models. Electronics construction is an enjoyable hobby and it should always remain so. It will not be frustrating and expensive if the simple instructions are followed. I hope that you will get much enjoyment out of reading this book and carrying out the circuit-building and testing.