COMPONENTS AND ASSEMBLIES
All electronic equipment uses components, passive (R, C, L and some diodes) and active (transistors, ICs etc.), built up into assemblies to make complete operational units; some units, like the videorecorders and disc players examined later in this book, have mechanical assemblies as well. This section surveys the most common building blocks in electronic systems. Type-coding and formulae are given in Chapter 24.
The basic function of a resistor is to impede the passage of an electrical current, absorbing energy and dissipating it as heat. The vast majority of resistors in use dissipate less than 500 mW, and the most common are metal-oxide and metal-film types, which (due to their superior accuracy ...