electronic circuit Tone

You can also use a pot and a handful of components to build a simple tone control that you can retrofit into any pedal that lacks one. Look at the following drawing:

The input accepts the signal. It passes through a R1 and C1 which form a filter network. R2 and C2 form the other side of the network. (Note the different component values). As you move the pot shaft, more signal is sent to one side or the other of the tone network. The wiper of the pot (lug 2) is the output. This is a simplified explanation of the tone control, but it shows how the wiper allows you “shift” the signal from one side of a circuit to another.