Point Reyes Kuiama Fuzz

 This was a request. here is a change to try out your low gain and low leakage soviet transistors in a Tonebender Mk. II. There is a trimpot for each transistor and an onboard voltage converter for daisy chaining. The schematic specifies MP40 for all transistors but I bet other should work and sound good as well like MP41, MP42, MP20, MP21, GT308, GT402 etc, etc, etc. Just mind the pinout for the GT series transistors. Vero - Point2Point Layouts has a spreadsheet for for most NOS russian transitors HERE.

You can also build a Marshall Supa Fuzz by upping the 5uF (....or4,7uF) capacitors to 10uF or a Vox Tonebender Mk. II by upping both 10nF caps to 15nF.

Catalinbread CB30 V2

 Recently traced by Aion Fx, here is the 8 transistor version of CB30. It is supposed to be a very good sounding Vox-esque overdive. With 8 transistors it was quite difficult to keep the size down but it will fit into a 125b with no problem.

Schematic, tracing journal and more info at Aion Fx.

Dunwich Amplification Bass Overdrive (DIY)

 Based on Boss ODB-3 but with lots of added controls and switches!

Schematic and BOM at OSH Park.

Fuzzrocious Rat Tail V2

 Evilarsen traced a unit from 2015 last week and not surptisngly, it is a Rat derivate. However, the "One" and "Two" controls should give you more tonal options than a stock Rat.

Dunwich Amplification Wizard Fuzz - Big box version

 Here is a heavy beast from Dunwich, traced by Vince69 over at FSB.

Dunwich Amplification Apostle (DIY version)

 Schematic and BOM avaiable at OSH Park.

Looks like a very interesting Matamp/Orange amp emulator running mostly at almost 36v with an active speaker simulator(?) and a "Mode" switch for two tonestacks. Each being at different locations in the circuit.

Dunwich Amplification DIY HM2 "2021 Edition"

 Another take by Dunwich Amplification on the mighty HM2 circuit. Just released as a DIY project at OSH Park it has some tweaks all along the circuit compared to the stock Boss schematic. It also has a built in active clean blend circuit and switches for both hard and soft clipping diodes.

Schematic and BOM can be downloaded at OSH Park. 

 

 

...and a layout with "Dope-Ass Lower-Tuned" values for the gyrator eq section requested (?) by MTK.

These values were calculated by Ryan from Heard Sound Circuits and makes things sound....more evil.

(Low: 62,48 Hz, Mid: 716,67 Hz, High: 1065,5 Hz)

 

 

 

 

Demo time with MTK!

 

 

 

 

Dunwich Amplification CTG (DIY version)

 Here we have a "little" monster layout for a DIY project that Dunwich Amplification just released at OSH Park. It is supposed to a emulate a part Al Cisneros of Sleep bass rig. It is basically three circuits in parallell, a DOD 250 Pre Amp, a Boss DS1 and a clean J FET boost with a James tonestack.

Schematic and BOM can be downloaded HERE.

 

 

GuitarPCB Plexi Plus

 This was a request. Based on Ramble FX Marvel Drive but with some tweaks.

Schematic and info HERE

Zvex Fuzz Factory

 How did I miss THIS one?😕😖

Dunwich Amplification Olde Dirty Bass - 125b/Custom version

 This one shares almost the same footprint as the earlier "Big Box" version but component values have been changed all across the circuit. No major changes except for the "bass boost" cap/resistor at the Cut switch and a few extra caps and resistors.

Schematic is avaiable at FSB.

 

 

Fulltone Secret Freq

 Based on schematic from PedalPCB.

Seppuku Fx Memory Loss - alike

 The layout is based on a quite diffucult-to-read schematic found at Mod Wiggler forum.

It may contain some errors and there are few question marks next to some of the pots and one of the caps, so some "trial and error" might be necessary to get this thing working as it should. Also, the "Filter" switch looks like a feedback switch for the LM386 IC and it appears to be a panel mounted push button switch but I guess a SPST toggle switch can be used as well.

 

 

Mid-Fi Electronics Pitch Pirate

 Schematic from the creator himself is avaiable at FSB.

Death by Audio Super Fuzz War - Fuzz section

 Deadend Fx just traced this rare beast and released a PCB for it. Go and get it!

If not, here is a couple vero layouts for the fuzz section. I will upload the Boost section once I can wrap my head around some of the switch connections....

There are two layouts, one stock the with internal 8-pole DIP switch and one with all switches converted into 8 external SPST toggle switches.

 Schematic HERE. 

Unverified stock version

 

Verified toggle switch version

 

 

 

Spaceman Effects Apollo VII Overdrive

 A bit modified compared to the schematic to keep it 1590B friendly. The relay bypass switching is omitted and so is the bicolour LED indicator. The circuit itself is quite "normal" compared to other Spaceman circuits and there is only one odd part; TLE2426 which is a precision virtual ground regulator. Layout is based on schematic avaiable at Deadend Fx.

Mad Professor Blueberry Bass Overdrive

 This is basically a higher gain version of BJFE Blueberry Bass OD since it has an added pre amp stage (Q1). Note that originals had the now obsolete BF244A transistors with DGS pinouts. I changed the pinouts for more accesible transistors. 2N5457s should bias up fine and sound good.

Paul Cochrane Timmy V3

 Based on schematic from PedalPCB