To populate the board for the Grace, omit the 2.2uF capacitor, jumper the 15k resistor, and replace the 2.2k resistor with a 15k one. See below:
This is a library of perfboard and single-sided PCB effect layouts for guitar and bass. I'm not an electrical engineer by any stretch of the imagination, just a DIY'er who likes drawing layouts. It is meant for the hobbyist (so commercial use of any of these layout is not allowed without permission) and as a way to give back to the online DIY community.
Wednesday, May 18, 2016
Run Off Groove Big Daddy/Grace
Here are two great sounding, yet simple circuits from Run Off Groove. The Big Daddy uses a JFET gain stage to push a 386 chip, while the Grace uses a JFET buffer in front of the 386 for added sparkle. Parts-wise, there's not a lot different between the two, so I've only drawn up one board. Schematics, sound clips, and more info can be found on the ROG site.