Trimpot Connection with full rotation
The usual way to connect a potentiometer as a volume control is:







simulate this circuit &ndash; Schematic created using CircuitLab

That will make the output vary from 0% to 100% as you turn the knob from fully counter-clockwise to fully clockwise. (the Left and Right terminals may be swapped, depending on how you look at the pot.)

If you want to use the pot as a simple two-terminal variable resistor, do this:







simulate this circuit