Dunn Effects LXV Distortion

 Schematic is avaiable HERE.

Dwarfcraft Devices Hax

 

Polytone Multivoicer

Have anyone heard of this one? This is a a super rare distortion unit with clean blend and octave up. There is no sound demos online but the lucky few ones that have played one says it is quite a wild sounding circuit.

Schematic is a avaiable at Deadend Fx.

Roland AD-50 Double Beat MOJO layout

 

Dead Astronaut Skyscape Chorus

 Based on EHX Small Clone but with lots of mods and useful addons.

Schematic is avaiable HERE.

*Update 231112* 

Layout is corrected since Erubi spotted some errors 

Electro Harmonix Bad Stone

 This is a monster!

It is based on the schematic by Lectric Fx which includes a recovery stage with internal trimpots to set the output volume.Schematic is avaiable HERE.

ProCo Juggernaut

 

Catalinbread Heliotrope

 This circuit is quite infamous for being quite noisy with oscillator bleedthrough just as for most Bit Crushers. ,And to make things worse, this one has a built in fuzz circuit that amplifies noise even more. Hopefully, the separate ground connections for the fuzz/output buffer section and the the oscillator will tame some noise.

Peavey Decade Preamp

 After Josh Homme revealed one of his secret weapons, the small Peavy Decade amp, prices on those sky rocketed tenfold. Deadend Fx just released thier Dekandent  project which is based on the preamp section. Not sure how close you'll get to the QOTSA tone but it is at least a piece of the puzzle.

Schematic is avaiable HERE

Electronic Audio Experiments Surveyor V1

 Schematic is avaiable HERE.

Interfax HP-1 Harmonic Percolator MOJO layout

 Compact layout is avaiable HERE.

Zzoyd's Allies Fuzz

 Our ukrainian friend Zzoyds modified version of Masaru Kubuta Allies Fuzz.

No schematic for this one but  HERE is a very useful link!

Here are his description about it:

...we have Masaru Kubota Allies Fuzz.

so i  built it with germanium transistors + added a third stage for normal volume.

What I want to say about this Ge beast; you can use it like a fuzz, you can use it like a Ge booster,

which working  with every overdrive, every fuzzes!

How's the fuzz pot working? Very strange, when you turn to left you get less gain and more highs,when turn to right, more gain and more mids. I really like this one! Using with overdrives, you get another sound!

 Don't forget to check out his other design, Black Velvet Fuzz.

 

 

 

Creation Audio Labs MK 4,23 Clean Boost

 Another request!

Schematic is avaiable HERE.

Jackson Audio Amp Mode

 Per request.

Schematic is avaiable HERE.

Tim Escobedo Harmonic Jerculator

 Tim Escobedo's take on the rare Harmonic Percolator. Simple with no mojo parts in sight. 

Electro Harmonix Clone Theory

 This is it for, now. Covid restrictions were lifted here today so I'm going to take a break and try to live a normal life for a while ;-).  But here is a project of the 70s version of EHX Clone Theory which should keep you occupied for a while. An onboard voltage doubler is included followed by a 15v voltage regulator for the required power supply. The only addon in the audio path compared to the vintage units is a booster stage and volume trim before the output to cure the slight volume drop when the circuit is engaged.

Schematic is avaiable HERE.

Analog Bit Crusher

 

Walrus Audio Julia Chorus

 Requested a few times so here it is. It is based on Boss CE-2 but it has a few useful addons and mods. Schematic is avaiable HERE.

 

JHS Super Bolt

 

 

This one is for lovers of olde good Valco and Supro tone...

 

DAM Black on Black

 A super rare tonebender by DAM. Input stage is pretty much a Buzzaround preamp stage while the fuzz stage (Q3) is a 3 knob tonebender stage. The tonestack is slightly tweaked to be more focused on the lower mids.