The OD-05 has a standard feedback diode clipping stage similar to a Tubecreamer, but what's special about it: a parametric equalizer that allows either a cut or boost of up to 15dB in a range from 100 Hz to 4 kHz. With this flexible pre-clipping EQ you can create versatile sounds. The mids can be boosted for a wah-sound or the circuitry can be tuned to amplify the resonance peaks of guitar and amplifier. Even a Scooped-Mid-Sound is possible, which is quite rare in an overdrive.
The dimensions of this pcb are 49,5mm x 54mm. It is also available as ready to solder kit:
This project is by Aion Electronics. Since the modifications featured in this project require some basic knowledge, this project is rather for more experienced builders.
Here is the direct link to the manual with layout and schematic:
Here you can find build reports on this project: Build Reports