Acorn Amplifiers ADHD Synth Fuzz

 Schematic is avaible HERE

 

Devi Ever Shoegazer

 Had a request for this one...yes I know it is a Soda Meiser into a Thorns Peaker and could be built on separate boards but...those small Devi circuits is so much fun to draw.😏

Intersound The Notch

Schematic is avaiable HERE.

Fulltone PlimSoul

 Schematic is avaiable HERE.

Note that it is highly recommended to use a 10k pot for Sustain to avoid noise and dead spots in the sweep.

Aria RE-102 Distortion Sustainer

 

Zvex Box of Rock

 

ZVex Super Duper 2-in-1

 

Dead Air Face Disaster

 Phew, February has been a wild month here on the blog so lets end it with a BANG. This one is based on Tim Escobedo's DIY classic, Ugly Face with quite a few added bells and whistles such as a optical LFO section, separate starve control for two of the chips and some tweaked values here and there.

Schematic is avaiable HERE.

EarthQuaker Devices Dream Crusher

 Traced by Unsound Circuitry, once again, thanks, mate!

It is a well known fact that this is a modified Ge Fuzz Face. The stock Fuzz control is ditched and replaced with a "Pre Gain2 control. It runs on normal power supply and is powered by soviet MP37B NPN  germanium transistors. These are usually faily low gain and the current leakage is low. The bias trimpot is placed on the side of the board for easy moddong for an external bias pot.

 

 

 

Dead Astronaut Chasm Reverb

Schematic is avaiable HERE.

Dead Air Bow Echo

 Schematic is avaiable HERE.

Aria AUM-1 Ultra Metal

 Schematic is avaiable HERE.

Dead Astronaut Black Triangle Overdrive

 There was an old unverified layout in the library that I wasn't too fond of. So here is a new one!

Schematic is avaiable HERE.

Dead Astronaut Pendulum Tremolo+

 Schematic is avaiable HERE.

Dead Astronaut EBE Delay

 Schematic is aviable HERE.

Ibanez PT-900 Phase Tone

 Schematic is avaiable HERE.

Stomp Under Foot Utility Muffin

 The Frank Zappa Muff...

Schematic is avaiable HERE.

MXR Distortion 2

 Schematic is avaiable HERE.

EarthQuaker Devices Blumes

Schematic is avaiable HERE, thanks skizoide!

 

 

Dharma Sound / Colorsound Distorter

Here is a forgotten oldie that has been requested ever since Colorsound released a small run of replicas in the fall of 2023. Dharma Sound was a small operation builder from Kent, OK, active in the 70s. 

The circuit design is pretty interesting; first a BJT input buffer. Then the signal is split into two parallel active fixed filters. The signal is then joined together before it hits the LM741 op amp with stacked clipping diodes to generate distortion. . Sound clips suggest that it sounds like a distortion with a cocked wah tone.

Schematic is avaiable HERE.

Oh, and this is post #1500! 

*Edit 24221* Verified by Henrik.