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Circuit Board for the Griffin Effects YJM250 Plus project.
Based on the DOD 250 Overdrive. You can also build the DOD YJM 308 and the MXR Distortion + with this board as well. All versions are included in the instructions along with Yellow and Gray versions of the 250 Overdrive.
True bypass wiring can be found here: Griffin Effects Negative Ground True Bypass Wiring
Griffin Effects Silent Step Switching can be found here: Griffin Effects Silent Step
Layouts in instructions: