There were a few mistakes in the last version of this. Here’s an updated schematic and PCB.

Here’s a PCB and Layout for the Ring Modu-Matic. I have yet to build this yet so use these files at your own risk! The dual gang pot in the lower corner I can’t get rid of, due to my lack of skills with Eagle. Notice the lines connecting the pot to pads on the PCB.

*** edit: These schematic and PCB had some errors. It’s been removed. There is an updated version the next post ***

Here’s a layout for the MosFET boost. The drawing is pretty sloppy. But this shows the schematic and layout I used for my build. Seemed to work well. 

Here’s a link to a picture of my build. Here’s a link to the schematic on Muzique.com

This is treble booster from the Stompboxology. This was an interesting new letter published by Nicolas Boscorelli. Who has, it seems, disappeared. If anyone has any information about this guy please email me! I looking for issues of Stompboxology. I have a few I can trade. There are some posted at http://moosapotamus.net/.

He also published The Stombox Cookbook. Which is very cool. It contains a lot of original and interesting Stompbox designs.

It has an interesting and original design based around a pair of FET’s.

Here’s the schematic that I redrew from the Stomboxology article.

Here’s a layout that I drew.