Akashic Guitar effects PCB lookup
BIASDENSITYFILTERFUZZLEVELCONTROL

1590BB · 6 knobs

PCB Guitar Mania

Fuzz Blaster

Based on the DBA Supersonic Fuzz gun

Category
Fuzz· Ultimate Fuzz tone
Controls
Bias · Density · Filter · Fuzz · Level · Control
Difficulty
Easy
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

Self-oscillating crazy fuzz, featuring gate control mod to make it more controllable. If you feel the Fuzz factory wasn’t crazy enough, this pedal is a must for you!

Introduction

The Guys from DBA nailed a unique and crazy pedal once again with the Supersonic Fuzz gun. This circuit presents a set of 5 knobs and a toggle totally interactive in between them that will divide the crowd in between those who love it and the ones that hate it. Still, it will definitely provoke you to take a side on this, same as what happens with the classic Fuzz Factory.

If we compare it with the Zvex circuit, I’d say the Fuzz blaster is even more unpredictable yet more flexible; that’s why we decided to add the Control trimpot to tame down the madness of the self-oscillation mode, or at least to give you a chance of controlling it.

Controls

• Bias: Biases the output transistor to change the overall sound structure.

• Density: Increases the Q range input into the fuzz while also adjusting the oscillation frequency in Osc. mode.

• Fuzz: Increases the intensity of the output.

• Filter: Sweeps the high frequencies of the output.

• Level: Master output volume.

• Gate/Oscillation Toggle: In Gate mode, the fuzz tone is more standard and gated. In Oscillation mode, the signal self-oscillates for noisemaking and bizarre fuzz tones.

• Control trimpot: REPLACES R7** allowing you extra control on the oscillation mode.

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.

Fuzz Blaster – Building Docs

Fuzz Blaster – Drilling templates

Schematic

The schematic is in the vendor's build document, page 6. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 27 rows

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Resistors 7
R11M1M
R2910K910k
R4910K910k
R5910K910k
R8910K910k
R94M74.7M
R10750R750
Capacitors 8
C110n10n
C2100n100n
C3470p470p
C6100n100n
C7330n330n
C44.7u4.7u
C54.7u4.7u
C8100u100u
Diodes 2
D13mm3MM
D21n58171N5817
Transistors 3
Q12N50892N5089
Q22N50892N5089
Q3BC517***BC517
Potentiometers 6
BIASB50KB50kPotentiometer
DENSITYB100KB100kPotentiometer
FILTERB10KB10kPotentiometer
FUZZB10KB10kPotentiometer
LEVELA100KA100kPotentiometer
CONTROL10K10kPotentiometer
Switches 1
SW1SPDTSPDT