CM-1
This prototype is based on the classic wah-wah circuit designed by Brad Plunkett and Lester Kushner for Thomas Organ company.

Wah-wah prototypes based on classic designs, being as faithful as possible to the original circuit and using an artisanal inductor.
Thanks to its modular design it's possible to change circuits in a case with its potentiometer, switch and jack connectors easily, or have several cases with different kind of potentiometers to try new configurations without having to solder.
The connection between the case and the circuit is done using a Molex High Pressure connector with gold plated pins (for both male and female pins) for maximum reliability and durability, assuring an optimal electric contact and resistance to corrosion.
All the circuits can be installed in Crybaby GCB-95 and VOX V847 "Made in USA" wah-wah cases, and can be fixed using two screws with a Nylon washer for perfect fastening.
This prototype is based on the classic wah-wah circuit designed by Brad Plunkett and Lester Kushner for Thomas Organ company.
This prototype is based on an wah-wah made in England in 1976, which is based on the classic wah circuit.
This prototype is based on the schematics from a wah-wah from early 70s. It can work as a volume pedal too.
Pin | Name | Notes |
---|---|---|
1 | FX_IN | Effect input |
2 | FX_OUT | Effect output (to potentiometer's pin 3) |
3 | P2_Pot | Potentiometer's pin 2 |
4 | GND | Ground connection |
5 | 9V- | Connected to input jack switching circuit |
6 | 9V- | Negative terminal from the battery |
7 | 9V+ | Positive terminal from the battery |