Blackstone Appliances MOSFET Overdrive

 Schematic is avaiable HERE.

Browne Amplification Protein Green Channel

 Per request.

Schematic is avaiable HERE.

Browne Amplification Protein Blue Channel

 Schematic is avaiable HERE.

One Control / BJF Strawberry Red Overdrive

 Schematic is avaiable HERE.

Chuck D. Bones / PedalPCB CMOS Overdrive Deluxe

 Per request.

Schematic can be found HERE.

PedalPCB Viceroy Overdrive

 Chuck D Bones improved version of EQD Monarch Overdrive.

Schematic can be found HERE.

 

Exar HM-02 Heavy Metal

 As many others, I thought this was just a clone or a close derivate to the Boss HM2. We couldn't be more wrong. Vitali from drunk beaver pedals opladed a schematic for it and it reveals a quite an interesting circuit. The distortion section resembles Boss DS2 with a discrete op amp and hard clipping diodes.

The 3-band eq section is fairly unique. Mid control is basically a volume control for the raw unfiltered signal. Low is built around a 3rd order Sallen key filter and the High control is driven with an active dual high pass filter not dissimilar to one of the filters found in EHX Knockout.

The layout turned out quite big with all these transistors and op amps so it is intended for a BB enclosure.

Victory Amps V1 The Copper

 Schematic is avaiable HERE.

Blackhawk Amplifiers Volume IV

 Traced by evilarsen.

Fuzzlord Effects Troglodyte

 

 

 

A recovery stage is needed because of the lossy tonestack

Here is an another layout with an added BJT boost stage.

 

 

 

Castledine Electronics Magical Mystery Box

 Schematic is avaiable HERE.

There is two layouts for this one. One for an audio transformer and one for a fasel inductor.

Transformer layout

 

 

Fasel inductor layout.

 

Reeves Electro Supa J

 Schematic is avaiable HERE.

EarthQuaker Devices The Warden

 Schematic is avaiable HERE.

Fuzzlord Effects Riff Master

 Another trace by evilarsen. This is basically a Rangemaster tuned for more low end..

Spektr 2 Fuzz Wah

 

 

 

Exar MT-02 Metal

Schematic is avaiable HERE.

 

Carl Martin Crush Zone

 A quite interesting one. It is basically an old Tim Escobedo circuit (Punch in the Face silicon/FET fuzz face variant) sandwished between two op amp gainstages. The input cap is only at 220pF, try 4,7nF-10nF to fatten things up a bit. A trimpot is added for easy biasing for the J FET. Stock fixed value is 5,6k.

Schematic is avaiable HERE.

Carl Martin Panama

 Schematic is avaiable HERE.

Devi Ever Silver Rose V1

 Schematic is avaiable HERE.

 

 

Sunmachine Sonic Devices Fuzz O)))

 There was quite some hype and interest in this one a few years ago but it was never fully traced. Obviously it was based on a DAM Meathead but and the product description mentions a low pass filter for the "Low" control. guitarfxservice traced it a few days ago (thank you!) and it turns out that it is a stock Meathead with an input cap selector switch and the "Low" control is basically Pre Gain control. Nothing new under the sun(n) I upload this to demistify it.