Oscillators and pulse-generators using operational-amplifier ICs have been proposed by many authors. Such generators can be found in a flood of articles in journals, magazines, books, and IC ...

A small audio test generator is very useful for quickly tracing a signal through an audio unit. Its main purpose is speed rather than refinement. A single sine-wave signal of about 1 kHz is normally ...

Most audiophiles and enthusiasts have grown up with at least a basic understanding of what an amplifier does. It takes a tiny alternating electrical signal that represents the moment-to-moment ...