The 555 timer was first manufactured by Signetics but is now manufactured by almost every semiconductor manufacturer in the world. This book includes basic and general circuits, motor car and model railway circuits, and alarms and noise-makers as well as a section on 556, 558 and 559 timers.

Table of Contents

The 555 timer; basic circuits; motor car circuits; model railway circuits; general circuits; alarms and noise makers; 555 variations; practical notes; additional noise makers; the 555 and logic; fault finding; further 555 variations; further general circuits.