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Forum Home > Layout Gallery - GuitarPCB Build Documents, Mods and Tips > Angry Red Camel - ARC - Pro Series

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This is a variant of the Tube Sound Fuzz by Craig Anderton, plus a tone-boost circuit based on the GuitarPCB Stage 3 booster. Many pedals have been introduced into the marketplace with the basic design of the Tube Sound Fuzz, the most popular being the Red Llama™ by Way Huge®.

We feel our implementation with the addition of a tonal booster sets us apart from the rest.

This board features PCB-mounted potentiometers and toggle switch, reducing wiring burden.

This may be one of the most unique sounding hybrid Fuzz/Dirt style drives available. With our add-ons and modifications we believe it has surpassed by far any other version that has been previously ever been made available.

If you have ever built an original Llama style circuit you owe it to yourself to build this one. It can do everything the original does, but so much more! If not, this one is a no-brainer!

Build Document

Youtube Demo Video


R3 can be between 100k and 1M. This affects the level of gain in one position of SW1. The lower you go, the more difference there will be between the 2 settings of the switch. We recommend socketing so you can try different values.

TR1 adjusts the bias of the boost portion of the circuit. To set the bias, measure the voltage between the drain of Q1 and ground. Set the trimmer so that this voltage is 5V.

Now Available in the PCB Shop!

If you think you need reverse polarity protection it is simple:


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Check the Layout Gallery section of the Forum and find your project before building.

Pre-Build Reading Guides:  Crash Course#1 , Crash Course#2 & Tips, Tricks and Tutorials.

Troubleshoot threads must have pictures and voltages.

All builds are 100% verified. Be sure to use Genuine Transistors and IC's

Any serious builder should have an Audio Probe to diagnose problems quickly.

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March 28, 2014 at 9:07 AM Flag Quote & Reply

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