Here the circuit diagram of Maestro Boomerang pedal / Wah-Wah pedal for electric guitar effect.

Maestro Boomerang Pedal

Note: Transistors Q1 and Q2 were designated P-2356.

The Maestro Boomerang is not only a wide range wah wah pedal but also a volume pedal. It’s deemed as one of the best wah pedals ever built – and I totally agree. The only other wah that comes close is my Electro-Harmonix Crying Tone.

Download the schematic diagram in PDF document from the following link:
Maestro Boomerang Circuit 9.85 KBDownload Circuit Diagram

Step by step about how to build Maestro Boomerang Wah Pedal guitar effect, visit this page

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