Monday, 30 May 2016

Korg CMP-1 / Yamaha CO-01 Compressor

Here is a layout for a vintage compressor.
Schematic is available on FSB forum here.
Couldn't find any good videos around.

It has been drawn to fit any common NPN trarnsistor but if you go for the original mind the pinout!

Sunday, 29 May 2016

Way Huge Green Rhino MK II

Here is a layout for the Way Huge Green Rhino MKII overdrive.
I would like to thank Ciaran Haslett for drawing a schematic by reverse engineering his own pedal.

Friday, 27 May 2016

Triton Delay

Here is a layout for Culturejam's Triton Delay.
You can find his Build Guide here (Log In needed) and extra info on Madbean's website.

 Here is part of its description:
"The Triton Delay is yet another PT2399-­‐‑based delay circuit that, at its tonal and topological core, is substantially similar to the Rebote 2.5 by Tonepad. TheTriton, however, diverges from the base concept by adding a second Delay Time potentiometer and a unique (in the DIY world) modulation effect. The Delay pots are selectable via footswitch (latching), and when switching from one time setting to the other, the delay time change happens slowly, just as if you were manually turning the delay time pot on a standard delay pedal. This causes a gradual pitchbend that slowly resolves to unison if a note or chord is struck and held when toggling between Delay pots. To control the speed of the pitch bend/resolve, there is a pot labelled “Slow”. Making the transition speed slower also makes overall delay time longer. It’s a very interactive system."

Wednesday, 25 May 2016

Madbean Sharkfin Filter (Maestro FSH-1 without Sample&Hold)

Here is a layout for Madbean Sharkfin filter side.
There is already a verified layout for the complete project but I've preferred to use a separated post for this one
24/08/16 Layout updated!
Moved bottom left 3K3 resistor up one row to connect it to 150n output cap.

Saturday, 21 May 2016

CmatMods Butah

Here is a slightly modified version of the Marshall Bluesbreaker that is supposed to sound very nice.

Friday, 20 May 2016

Hjärt Müller Bass Drive

LM13700 Janglebox

   I seem to have gotten a bad CA3080 and noticed another poster did as well, so I decided to modify Mark's Janglebox layout to accommodate the cheaper and easier to find LM13700. I have built this and it works, but I moved a few things around. So I'll call this unverified for now but it should be good to go.

Wednesday, 18 May 2016

Parasit Studio - The Xor'cist

A new Stutter Fuzz / Ring Modulator by Freppo from Parasit Studio.
You can find all info about this project and PCBs at
To make sure this project is built correctly (for momentary or latching Stutter footswitch)
you must follow his Build Document here.

Sunday, 8 May 2016

Maxon OD-F1 Fire Blade Overdrive Effector

YATS from '94, recycled by Maxon. Asym clippers and slightly lower rolloff frequency for the high pass. Should be a decent alternative for the standard TS.

Wednesday, 4 May 2016

DOD FX22 Vibro Thang

Here is a layout for the DOD FX22 Vibro Thang (Vibrato / Phasor)

04/05 Layout Updated: LM358 pin 4 and the 18K resistor from the bottom LM13600 pin 9 were connected to V+ instead of ground.

Monday, 2 May 2016

Ross Phaser

This was a request.
The video is for reference only:

Crazy Tube Circuits Ziggy

 Info from their website:
"Ziggy is a low to medium gain overdrive that is designed to respond like a tube amp. Unlike most overdrives it does not feature a “mojo” opamp but cascaded discrete (MOSFET) gain stages that give ultra touch sensitivity so that you can control everything from your guitar’s volume knob and pick attack.
Gain knob acts as a voicing control adding more bass as you turn clockwise, choosing from jangly and sparkling clean to thick crunch of a tube rectified amp . Tone knob behaves as a presence control adding bite to your tone.
Inside the updated (white and gold version) we have included a two position gain switch. The higher gain setting has extra bite and sustain making perfect for lead sounds and is reminiscent of the now discontinued wine red Stardust"

I would like to thank Ziotasgiorgios for reverse-engineering his own pedal in our forum section and Nocentelli for drawing the schematic!
Thanks also to Hozy31 for verifying the layout!