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 board has build options for different drive channels: M2; E2; B2; C2; K2; O2. The attached BOM has separate pages for each option.

The board supports B2, C2, E2. K2, M2 and O2 via alternative BOM. The BOM file included has separate pages for each option.

External foot switching is needed to choose either the clean or drive channel to be sent into the cabsim. Cabsim out is the output of the pedal.

Link to interactive M2 BOM.

https://paulamps.com/boms/AMT%20M2%20125B%20Rev3.html

Link to Interactive E2 BOM.

https://paulamps.com/boms/AMT%20E2%20125B%20Rev3.html

Link to Interactive C2 BOM.

https://paulamps.com/boms/AMT%20C2%20125B%20Rev3.html

Link to Interactive K2 BOM.

https://paulamps.com/boms/AMT%20K2%20125B%20Rev3.html

Link to Interactive B2 BOM.

https://paulamps.com/boms/AMT%20B2%20125B%20Rev3.html

Link to Interactive O2 BOM.

NOTE: The O2 requires a bodge wire on this PCB to skip over one gain stage.

The bodge wire is shown on the silk screen of this interactive BOM and on the schematic below.

https://paulamps.com/boms/AMT%20O2%20125B%20Rev3.html

Link to discussion about the combo pedal project.

https://forum.pedalpcb.com/threads/combo-build-for-pedal-board-core-pre-boost-clean-drive-channel-cabsim-noise-gate-post-boost.21199/post-268081