Zound Zkulptor Booster

A good guitar booster should adapt to its position, and to the needs of the guitar and guitar player.

The ideal booster needs to reflect the Fletcher–Munson curves, because since the ear hears different frequencies at different levels, when the guitar signal is amplified it should remain pleasant and equivalent.

I decided to use a MOS-fet because the bias, impedance and sound can be altered and adapt any guitar pickup and playing style.

A prototype was created after investigating a bit some popular boosters.

The oscilloscope shows that a 3 potentiometer configuration allows for a correct adaptation to almost any guitar pickup.

The proto board layout is transformed into a schematic.  I used KiCAD.

Then the enclosure needs to be designed and visualized before its build. I used FreeCAD to generate a visualization in 3D.

The next step is to create a PCB based in the size measured in the 3D model.

The PCB was etched, the enclosure was drilled the parts were soldered.

The schematic and pcb are available here and here.

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