Akashic Guitar effects circuit lookup
VOLUMEFUZZBIASINPUT

125B · 4 knobs

PedalPCB· PCB706

Nein Fuzz

Based on the Fairfield Circuitry ~900 Fuzz· 3 other boards clone it

Category
Fuzz· OD / Distortion / Fuzz
Controls
Volume · Fuzz · Bias · Input
Price
$10.00in stock
Tags
125B, 125B 4-Knob (Type 1)
Buy the PCB at PedalPCB Build document5/18/25 Tayda drill template

From the vendor

Controls

• Volume

• Fuzz

• Bias

• Input

Details

• Designed for a 125B enclosure with top-mounted jacks

The company, product and service names used in this web site are for comparative purposes only. All trademarks and registered trademarks are the property of their respective owners. This product is not manufactured or distributed by Fairfield Circuitry, maker of the Fairfield Circuitry ~900 Fuzz.

PedalPCB is in no way affiliated with Fairfield Circuitry.

Schematic

The schematic is in the vendor's build document, page 3. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 38 rows

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RefValueNormalizedTypeNotes
Resistors 17
R11M1MResistor, 1/4W
R247K47kResistor, 1/4W
R33K33.3kResistor, 1/4W
R43K33.3kResistor, 1/4W
R54M74.7MResistor, 1/4W
R610K10kResistor, 1/4W
R71K1kResistor, 1/4W
R847R47Resistor, 1/4W
R9270K270kResistor, 1/4W
R1010K10kResistor, 1/4W
R112K22.2kResistor, 1/4W
R12470R470Resistor, 1/4W
R13150K150kResistor, 1/4W
R14470K470kResistor, 1/4W
R151K1kResistor, 1/4W
R10047R47Resistor, 1/4W
CLR4K74.7kResistor, 1/4W* LED current limiting resistor
Capacitors 12
C1220p220pCeramic capacitor
C210n10nFilm capacitor, 7.2 x 2.5mm
C322u22uElectrolytic capacitor, 5mm
C4100n100nFilm capacitor, 7.2 x 2.5mm
C5100n100nFilm capacitor, 7.2 x 2.5mm
C6100n100nFilm capacitor, 7.2 x 2.5mm
C722u22uElectrolytic capacitor, 5mm
C8220p220pCeramic capacitor
C91u1uFilm capacitor, 7.2 x 5.0mm
C100220u220uElectrolytic capacitor, 5mm
C101100n100nFilm capacitor, 7.2 x 2.5mm
C102100n100nFilm capacitor, 7.2 x 2.5mm
Diodes 1
D1001N58171N5817Schottky diode, DO-41
Transistors 4
Q1J201J201JFET transistor, N-channel
Q2J201J201JFET transistor, N-channel
Q3J201J201JFET transistor, N-channel
Q42N39042N3904BJT transistor, NPN TO-92
Potentiometers 4
BIASB50KB50k16mm right-angle PCB mount pot
FUZZA100KA100k16mm right-angle PCB mount pot
INPUTA1MA1M16mm right-angle PCB mount pot
VOLUMEA10KA10k16mm right-angle PCB mount pot

Other boards based on the Fairfield Circuitry ~900 Fuzz