Electro Harmonix The Worm / Madbean Charlatan

 A vintage big box The Worm with some useful improvemnts and mods by Madbean. The power section have been reworked by a voltage doubler and a voltage regulator for 9v to 15v operation. An internal volume trimpot is added. And the unknown original vactrols is replaced by a trio of LDR/LED pair.

Schematic and more information is avaiable HERE.

 

Sovtek MIG 100H

 Another generous contribution by Sebastian, this time a Sovtek MIG 100H amp emulator!

The Acorn MIGFET post inspired me to whip up this layout for a version of the MiG 100H, which is more like a hot-rodded JCM800 than the pseudo-Plexi MiG 50. An interesting variation in its own right.

I've not built this myself yet, since I'm out of 100k trimmers and A1M pots, so due diligence is encouraged. I've attached the amp schematic for scrutiny. The layout follows the circuit pretty much 1-to-1 until the phase inverter. One half of the phase inverter is used, then the output stage is pilfered from the Menatone Foxy Brown (I've found it great in various AIAB builds, so it should do the trick here too). The master volume is moved to the end of the circuit.

Like the JCM800, the MiG 100H has two channels with separate inputs, the lower-gain of which skips the first stage of the preamp. This layout has a footswitch to toggle between the two channels for (hopefully) added utility.

 

 

 

 

 

Amptweaker Tight Fuzz

 Schematic is avaiable HERE.

Amptweaker Tight Drive

 Schematic is avaiable HERE.

Stamps Amplification Drive-O-Matic

 Simply a Rat with some odd component value choices, two switchable gain controls with their own RC filters and a slightly reworked filter control. 

Schematic is avaiable HERE.

Catalinbread Octapussy

 Schematic is avaiable HERE.

Catalinbread Silver Kiss Mk.2

 Schematic is avaiable HERE.

Note that the 4,7uF caps is per original Silver Kiss spec. The 1uF film caps is suggested by Aion Fx as replacements.

Xotic SL Drive

 Schematic is avaiable HERE.

10uF cap is stock SL Drive value, 1uF is suggested value by Aion Fx.

Acorn Amplifiers MIGFET 50p Preamp

 A big thanks to Chris Stelloh for the schematic!

 

 

 

 

Carlin Compressor/Fuzz

A old swedish compressor and fuzz with an unique discrete design that I havenä't seen haven't seen anywhere else. Raraly cloned except for Creepy Fingers that did a small run a few years ago.

This layout is modified for true bypass.

Vemuram Karen

 Schematic is avaiable HERE.

Vemuram / Ibanez TSV808 Overdrive

 Schematic is avaiable HERE.

 

Vemuram Jan Ray

 Schematic is avaiable HERE.

Way Huge WHE208 Overrated Special

 Schematic is avaiable HERE.

JPTR FX Warlow Fuzz

 Schematic is avaiable HERE.

Electronic Audio Experiments Steiner VCF

 Description is avaiable HERE.

Schematic is avaiable HERE.

Jürgen Haible Wasp CV Filter

 Schematic is avaiable HERE.

Aion Fx Argus Silicon Fuzz

 Per request.

Schematic is avaiable HERE.

KGR Harmony Arare / Lollar Overdrive

 Per request.

Update 231116.

Missing cut added at P7

 

 

 

 

 

 

 

EarthQuaker Devices Fuzzmaster General

 Traced and generously shared by Dirt Monger Instruments.

Schematic can be downloaded HERE.

Madbean Mugshot

 Booster section from a Moog MF-104m Delay

Schematic is avaiable HERE.

 

Nobels DT-SN Distortion Special

An old request that I thought was a joke. But here it is!

The schematic for this monster is avaiable HERE.

Thorpy Fx The Dane

 Schematic is avaiable HERE.

Aion Fx Meteor - Ibanez/Maxon SD9

 Per request.

A modified take on Maxon/Ibanez Sonic Distortion with elemnts of Ibanez SD9M.

Schematic is avaiable HERE.