Akashic Guitar effects PCB lookup
DEPTHGAINHIGHLEVELLOWRATEBIAS

1590BB · 7 knobs

PCB Guitar Mania

Fuzz Phase

Based on the Vintage Soviet schematics,

Category
Phaser· Vintage germanium fuzz
Controls
Depth · Gain · High · Level · Low · Rate · Bias
Difficulty
Advanced
Price
€11.90out 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 circuit’s origins are different Soviet electronics magazines and books from behind the iron curtain redesigned and renewed by the PCB Guitar Mania team into a unique vintage germanium fuzz with EQ and gentle phasing vibrato effect.

Introduction

Whether you’re a fan of vintage fuzz pedals or looking to add a distinctive flavor of fuzz to your collection, this exclusive design from PCB Guitar Mania is sure to please.

This unique germanium fuzz is based on different schematics from the Soviet era that we crystallized into one circuit and readapted to modern times while maintaining the original flavor of the early soviet phasers. The result is a truly unique pedal that offers a great vintage fuzz sound with EQ and a smooth phasing vibrato effect.

These types of projects take a lot of rework and experimentation until we reach the final result. If you are interested in similar projects, I recommend you to take a look at our Bulgarian Fuzz.

Controls

Potentiometers

• DEPTH

• GAIN

• HIGH

• LEVEL

• LOW

• RATE

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

Fuzz Phase – Building Docs

Fuzz Phase – 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 80 rows

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RefValueNormalizedTypeNotes
Resistors 41
R333k3k
R3424k24k
R11m1M
R35220R220
R23k33.3k
R36330k330k
R318k18k
R375k65.6k
R411k11k
R38330R330
R5330R330
R39910R910
R647k47k
R406k86.8k
R710k10k
R416k86.8k
R86k26.2k
R9200R200
R1062k62k
R114k74.7k
R12100R100
R133k33.3k
R14330R330
R1551k51k
R161M1M
R17180k180k
R1824k24k
R1951k51k
R2051k51k
R21560R560
R22560R560
R234k74.7k
R243M3M
R2515k15k
R263k33.3k
R271M1M
R2824k24k
R2933k33k
R30510k510k
R31510k510k
R32510k510k
Capacitors 23
C164u74.7u
C184u74.7u
C214u74.7u
C22100u100u
C232u22.2u
C1330n330n
C2470p470p
C4470n470n
C73n33.3n
C810n10n
C915n15n
C10470n470n
C12330n330n
C13330n330n
C151u1u
C171u1u
C19100n100n
C20220n220n
C310u10u
C52u22.2u
C610u10u
C1110u10u
C142u22.2u
Diodes 1
D11N58171N5817
Transistors 4
Q12N50892N5089
Q2J177J177
Q32N50892N5089
Q42N50892N5089
Potentiometers 7
DEPTHB50KB50kPotentiometer
GAINB1KB1kPotentiometer
HIGHB220KB220kPotentiometer
LEVELA50KA50kPotentiometer
LOWB220KB220kPotentiometer
RATEB50KB50kPotentiometer
BIAS100K100kPotentiometer
Trimmers 1
TRIM220K220kTrimmer
LEDs 2
D23mm LED3MM LED
D33mm LED3MM LED
Jacks & sockets 1
J177Q2Q2