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GAINTONEVOLUME

125B · 3 knobs

PCB Guitar Mania

Cosmonaut Colossus

Based on the Spaceman Titan II· 1 other board clones it

Category
Fuzz· Harmonically versatile fuzz
Controls
Gain · Tone · Volume
Difficulty
Intermediate
Price
€9.90out of stock

Heads up Builders widely report inconsistent quality from PCB Guitar Mania boards, and whether a given board works is a gamble. Read recent forum reports before ordering.

From the vendor

Project overview

This fuzz delivers an Airy, open, and harmonically complex tone with a wide range of gain control.

Introduction

This pedal covers everything from soft overdriven tones to nasty fuzz sounds on its high gain settings, always delivering clarity and harmonical richness. This device can get even more versatile by rolling down the volume knob on your guitar!

Its simple yet straightforward Big-muff tone stack will fit all your needs to shape your sound and launch your creativity to the stratosphere.

To build this pedal properly is a must to use low gain NPN silicon transistors, such as the stock 2n3903 or 2n222a like the one I used to verify this build. The key is to choose transistors with a gain lower than 200hfe. Higher gain transistors might occasion unwanted noises and oscillations.

Controls

• Gain

• Tone

• Volume

For any technical questions regarding this build don’t forget to check out our Facebook Group and our forum at Free Stomp Boxes.

Cosmonaut Colossus – Building Docs

Cosmonaut Colossus – Drilling Template

Schematic

The schematic is in the vendor's build document, page 5. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 25 rows

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RefValueNormalizedTypeNotes
Resistors 8
R11m1M
R21m1M
R31k1k
R410k10k
R51m1M
R610k10k
R74k74.7k
R84k74.7k
Capacitors 10
C1100p100p
C233n33n
C3100n100n
C4100n100n
C52n72.7n
C727n27n
C81n1n
C10100n100n
C647u47u
C9100u100u
Diodes 1
D01n58171N5817
Transistors 3
Q12N23692N2369
Q22N23692N2369
Q32N23692N2369
Potentiometers 3
GAIN2KBB2kPotentiometer
TONE25KBB25kPotentiometer
VOLUME100KAA100kPotentiometer

Other boards based on the Spaceman Titan II