Boss OD-1 OverDrive / Corona Overdrive PCB

Corona - Boss OD-1 OverDrive Guitar Pedal PCB



Not sure where to start? Check our Resources section for more information on building your own guitar pedals.

Back to top

Project overview

The Corona Overdrive project is a clone of the BOSS OD-1 OverDrive, originally released in 1977, which is known for being the first overdrive effect to utilize diodes in a negative-feedback arrangement for clipping purposes. Like the Distortion+, it lacks a tone control, but most who play through it say it doesn’t need one.
There have been a couple of different versions of the OD-1, with a major circuit revision in 1981 that dropped the quad op-amp for cost-savings reasons, but most players who have A/B’d the versions say the original is better. This project is for the original quad op-amp circuit.

There are two switches available: one for clipping diodes (with enough pads available for any diode combination you can dream of, as well as “comp cut” or diode lift in the middle), and a second one that changes the EQ of the circuit to have more low-end and fullness.