125B · 1 knob
Unofuzz
The original God City Instruments Uno Fuzz· 1 other board or layout builds it
From the vendor
Op Amp / NPN one-knob fuzz
Inspired by a variety of Muff-style circuits, the Unofuzz provides a classic, scooped, high gain, but highly customizable fuzz sound with just a single knob for saturation/fuzz.
Sale is for PCB only. You must source the components and build the pedal yourself. Photo of completed pedal is for reference only.
Build documents can be found here. Please read before purchasing.
Unofuzz V1.0 Build Guide
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NOT FOR COMMERCIAL USE
Schematic
The schematic is in the vendor's build document. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 52 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 24 | ||||
| R1 | 10k | 10k | 1/4 watt resistor | |
| R2 | 10k | 10k | 1/4 watt resistor | |
| R3 | 1M | 1M | 1/4 watt resistor | |
| R4 | 1M | 1M | 1/4 watt resistor | |
| R5 | 10k | 10k | 1/4 watt resistor | |
| R6 | 100k | 100k | 1/4 watt resistor | |
| R7 | 1k | 1k | 1/4 watt resistor | |
| R8 | 33k | 33k | 1/4 watt resistor | |
| R9 | 6.8k | 6.8k | 1/4 watt resistor | |
| R10 | 33k | 33k | 1/4 watt resistor | |
| R11 | 68k | 68k | 1/4 watt resistor | |
| R12 | 270k | 270k | 1/4 watt resistor | |
| R13 | 1.8k | 1.8k | 1/4 watt resistor | |
| R14 | 470k | 470k | 1/4 watt resistor | |
| R15 | 10k | 10k | 1/4 watt resistor | |
| R16 | 10k | 10k | 1/4 watt resistor | |
| R17 | 22k | 22k | 1/4 watt resistor | |
| R18 | 470k | 470k | 1/4 watt resistor | |
| R19 | 220k | 220k | 1/4 watt resistor | |
| R20 | 220R | 220 | 1/4 watt resistor | |
| R21 | 10k | 10k | 1/4 watt resistor | |
| R22 | 220R | 220 | 1/4 watt resistor | |
| R23 | 220k | 220k | 1/4 watt resistor | |
| R24 | 10k | 10k | 1/4 watt resistor | |
| Capacitors 17 | ||||
| C1 | 100u | 100u | 6MM Electrolytic cap | |
| C2 | 100u | 100u | 6MM Electrolytic cap | |
| C3 | 47n | 47n | Film cap | |
| C4 | 2.2n | 2.2n | Film cap | |
| C5 | 3.3n | 3.3n | Film cap | |
| C6 | 33n | 33n | Film cap | |
| C7 | 4.7n | 4.7n | Film cap | |
| C8 | 330p | 330p | MLCC | |
| C9 | 0.22u | 220n | Film cap | |
| C10 | 1u | 1u | Film cap | |
| C11 | 100p | 100p | MLCC | |
| C12 | 0.1u | 100n | Film cap | |
| C13 | 0.1u | 100n | Film cap | |
| C14 | 0.47u | 470n | Film cap | |
| C15 | 2.2n | 2.2n | Film cap | |
| C16 | 560p | 560p | MLCC Smoothes | |
| C17 | 47n | 47n | Film cap | |
| Diodes 7 | ||||
| D1 | 1n914 | 1N914 | Si diode 1n34a, | |
| D2 | 1n914 | 1N914 | Si diode 1n34a, | |
| D3 | 1n914 | 1N914 | Si diode 1n34a, | |
| D4 | 1n270 | 1N270 | Ge diode 1n34a, | |
| D5 | 1n270 | 1N270 | Ge diode 1n34a, | |
| D6 | 1n270 | 1N270 | Ge diode 1n34a, | |
| D7 | 1n5818 | 1N5818 | Schottky diode 1n5817, | |
| Transistors 2 | ||||
| Q1 | BC550 | BC550 | TO-‐92 transistor BC338, | |
| Q2 | BC550 | BC550 | TO-‐92 transistor BC338, | |
| ICs 1 | ||||
| IC1 | 741 | 741 | single op amp | |
| Potentiometers 1 | ||||
| Fuzz | A100K | A100k | 16mm pot | |
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