I have some extras if you want a PCB for the schematic I posted above, if you're in the US. Shipping cost more than it does to order 10 of them from PCBway if you're outside the US. I can post an interactive BOM for the O2 as well or I can share the schematic and PCB if you want to design your own.
forgive me for butting in- but I'm continually obsessed with small, analog, direct solutions and these things sound amazing. This project looks cool. Am I correct in that I would order this PCB, pick which drive channel I want, and then the rest is the same (fender clean and cab sim)?I've added the O2 schematic and interactive BOM to the PCBWay project.
B2/C2/E2/K2/M2/O2 Guitar preamp module for combo embedded projects. - Share Project - PCBWay
This has the Fender clean, Marshall Drive (and others options for drive channel) and Cab Sim modules all on one board for an embedded combo pedal project. It's the core of the combo pedal idea. This b...www.pcbway.com
Yes. This PCB can implement a full AMT pedal in a 125B case if that is what you want. It cannot do the high gain versions, like S2, P2. But, the more gain stages, the more these pedals sound trashy/thrashy. I love the E2 and M2. The O2 is lower gain but really sounds good and is over-drive-pedal friendly. That said, I made this to be the center piece of a combo pedal, which has worked out really well and all the pieces are also on PCBWay.
Fantastic. I saw that I could order the PCB assembled? That didn't seem like a bad deal.Yes. This PCB can implement a full AMT pedal in a 125B case if that is what you want. It cannot do the high gain versions, like S2, P2. But, the more gain stages, the more these pedals sound trashy/thrashy. I love the E2 and M2. The O2 is lower gain but really sounds good and is over-drive-pedal friendly. That said, I made this to be the center piece of a combo pedal, which has worked out really well and all the pieces are also on PCBWay.
I've spent an inordinate amount of time creating a combo build with 3 footswitches in a 1590DD case. The picture tells most of the story. I'm happy to share info about it if anyone is interested... I'm wondering if anyone else has any interest in such a thing.... To make this all fit, I had to make custom PCBs, such as making the ZUUL (actually a Muzzle) as small as possible.
Guts pic... Ordinary soft-touch controllers are used for pre-boost and post-boost. The channel selector module is more complex and described below. The little hand-made PCB on the back of the ZUUL limits...
I'll post an update here. 
