DIY Volume pedal
Posted on April 26th, 2015
A couple of the wires on my wah had broken so I needed to re-wire it. Recently I had been thinking about modifying the wah into a three in one wah/volume/expression pedal. Since I had to re-wire it anyway I took the opportunity to build a volume pedal.
I put together a circuit with a simple buffer, using the wah pot as a volume. I also added a DPDT toggle switch to bypass the buffer.
The circuit needs a bit more work. Currently with the toe down the signal is quietest and with the heel down the signal is loudest. It feel better if the volume operation was inverted.