For Fuzz Friday here's what most people think is the Cornish P2. It's a slightly modified Ram's Head Big Muff with flat mids and the Cornish buffer up front. If you want to use the Cornish bypass like the original check out the Cornish G2 layout for the bypass board.
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.
Friday, December 21, 2018
Tuesday, December 18, 2018
Had a request for this one and didn't feel like laying out another overdrive. So here you go. It's a chorus using a pair of PT2399 design to emulate the Boss Dimension C designed by Distorque. Original design thread here, schematic here for reference. I've laid it out for board mounted pots and will fit in a 125B with top mounted jacks.
Thursday, December 13, 2018
Tuesday, December 11, 2018
Came across this one and it's an interesting JFET-based OD with active bass and treble controls. It's apparently based on a late-60s Marshall 200 amp. Drew up the schematic for reference.
I believe the originals run off a 9v supply, but newer ones have a voltage doubler internally to run off 18v. Since I know there are different preferences when it comes to those, so I left it off the board. I realized after I drew all this up I probably should have included trimmers for biasing the JFETs, so you may want to socket the resistors going from voltage to the drain of Q1, Q3, and Q4-6. Though if you're using in-spec J201s (I highly suggest the SMD version and conversion boards) the stock values will probably work fine. YMMV Pots are board mounted and will fit nicely in a 125B.
Friday, December 7, 2018
This Fuzz Friday I present you the Clusterfuzz from good dudes at Function F(x). It's a great sounding fuzz and really versatile. You might be able to squeeze this into a 125B if you can squeeze the rotary and toggle switches under the board. Otherwise a 1590BB like the original is probably the way to go.
Tuesday, December 4, 2018
This is an adaption of the Fulltone Bassdrive without the boost footswitch, allowing for a smaller enclosure. I got the idea from a comment by Simão on the Fulldrive 2 post, and I though it could prove useful for my fellow bassists. Like the Fulldrive/Bassdrive, it's modded Tube Screamer with clipping and voicing options with the 2 toggle switches. Based on this schematic with the boost footswitch and 2nd gain pot removed.