variable

Resistors, Variable Volume controls, also called potentiometers are variable resistors that come in a variety of sizes, but usually do the same thing—control the amount of audio circuitry amplification. Wiper (Blue) Resistive coating (Blue) . […]

Capacitors, Variable Schematic symbols. Variable capacitors are used to tune your radio, and sometimes to fine-tune RF circuits and the accuracy of the frequency dial indicators. They consist of a set of non-movable, or static […]