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BALANCE

125B · 1 knobs

PCB Guitar Mania

Uno Fuzz

Based on the Univox Super-Fuzz· 4 other boards clone it

Category
Fuzz· The classic grizzly octa fuzz
Controls
Balance
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

If you could only take one fuzz pedal to a deserted island, this is the one you should choose. Inspired by the legendary Univox Super Fuzz, one of the most important circuits ever made. It set the bar for what a grizzly fuzz should sound like and has inspired countless pedals since then.

Introduction

The Uno Fuzz is the modern equivalent of one of the most worshiped pedals out there. Those crazy loud and heavy waves are the reason why so many consider Univox Super-Fuzz the ultimate fuzz and a legend in its own right.

The history of this pedal is complex and exciting. It has its origins in the 60’s Japan when the country was booming in an economic miracle. Many guitar companies like Teisco, Aria, Guyatone appeared at that time thanks to the manufacturing growth. Japan started exporting affordable instruments, many of them based on their American counterparts.

This is the context in which the first Super Fuzz made its apparition. The circuit was combined with a multi-effects unit that looked like an amp, the Honey Psychedelic Machine that mixed a tremolo, a vibe, and a fuzz. Later, because of its potential, they decided to manufacture the effect separately. The rest is well-known history; the circuit kept popping up in many brands throughout the decade.

When something keeps emerging like that, it’s generally because it has something good to offer: delivering an octave fuzz that turns any note or chord into a thick and searing texture, playing a high octave up alongside the distorted note, this is an effect that demands your attention. Nothing is more primal than plugging your guitar into a vintage fuzz circuit; it is raw, untamed, and so pure that it pushes the boundaries of what your instrument can accomplish. Get ready to immerse yourself into sixty years of beautifully broken sound.

Controls

• Balance

• Expander

For further analysis on this circuit take a look at this thread on Free Stomp Boxes Forum.

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

Uno Fuzz 1.1v – Building Docs

Uno Fuzz – Building Docs

Uno Fuzz – 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 57 rows

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Resistors 31
R2715k15k
R281k1k
R122k22k
R29100k100k
R2100k100k
R3010k10k
R3100k100k
R31100k100k
R41k81.8k
R547k47k
R6470k470k
R710k10k
R847k47k
R9220k220k
R1010k10k
R11150k150k
R1210k10k
R13470r470
R14470r470
R15100k100k
R1622k22k
R171k81.8k
R181m1M
R1922k22k
R20100k100k
R2110k10k
R224k74.7k
R2347k47k
R2422k22k
R2510k10k
R2610k10k
Capacitors 16
C21n1n
C3100n100n
C121n1n
C13100n100n
C110u10u
C410u10u
C510u10u
C610u10u
C710u10u
C810u10u
C910u10u
C1010u10u
C1110u10u
C1410u10u
C1510u10u
C1610u10u
Diodes 3
D01n58171N5817
D3oa90OA90
D4oa90OA90
Transistors 6
Q12sc8282SC828
Q22sc8282SC828
Q32sc8282SC828
Q42sc8282SC828
Q52sc8282SC828
Q62sc8282SC828
Potentiometers 1
BALANCE50KBB50kPotentiometer

Other boards based on the Univox Super-Fuzz