Enclosure not stated · 1 knob
God City Instruments Uno FuzzVerified
Based on the God City Instruments Uno Fuzz· the maker's own board is Unofuzz by God City Instruments
From the post
There is two layouts of this one, one stock with one control. Since it begs for modifications I added a second layout with four pots for more control:
• 100K resistor at the output is replaced with a 100k volume control.
• 33k/68k before Q2 is part of a fixed Big Muff style tonestack so they are replaced by a tone control.
• The tonestack itself has a very deep and quite narrow mid scoop so a Shape pot is added to blend in some more mids via 27nF cap.
Stock layout
...and four knob layout.
Schematic
This is a board layout, a drawing of where each part goes, and the post may link the schematic it was drawn from. Open the layout at Dirtbox Layouts. No KiCad fragment has been drawn for this circuit yet.
Parts list 33 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 13 | ||||
| ×7 | 10K | 10k | read from the layout by eye | |
| ×2 | 33K | 33k | read from the layout by eye | |
| ×2 | 470K | 470k | read from the layout by eye | |
| ×2 | 220K | 220k | read from the layout by eye | |
| ×2 | 220Ω | 220 | read from the layout by eye | |
| ×2 | 1M | 1M | read from the layout by eye | |
| ×1 | 68K | 68k | read from the layout by eye | |
| ×1 | 6.8K | 6.8k | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 270K | 270k | read from the layout by eye | |
| ×1 | 1.8K | 1.8k | read from the layout by eye | |
| Capacitors 13 | ||||
| ×1 | 100pF | 100p | read from the layout by eye | |
| ×1 | 330pF | 330p | read from the layout by eye | |
| ×1 | 560pF | 560p | read from the layout by eye | |
| ×2 | 2.2nF | 2.2n | read from the layout by eye | |
| ×1 | 3.3nF | 3.3n | read from the layout by eye | |
| ×1 | 4.7nF | 4.7n | read from the layout by eye | |
| ×1 | 33nF | 33n | read from the layout by eye | |
| ×2 | 47nF | 47n | read from the layout by eye | |
| ×2 | 100nF | 100n | read from the layout by eye | |
| ×1 | 220nF | 220n | read from the layout by eye | |
| ×1 | 470nF | 470n | read from the layout by eye | |
| ×1 | 1uF | 1u | read from the layout by eye | |
| ×2 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 3 | ||||
| ×3 | 1N4148 | 1N4148 | D1, D2, D3; read from the layout by eye | |
| ×3 | 1N270 | 1N270 | D4, D5, D6; read from the layout by eye | |
| D7 | 1N5818 | 1N5818 | read from the layout by eye | |
| Transistors 2 | ||||
| Q1 | BC550 | BC550 | read from the layout by eye | |
| Q2 | BC550 | BC550 | read from the layout by eye | |
| ICs 1 | ||||
| IC1 | LM741 | LM741 | read from the layout by eye | |
| Potentiometers 1 | ||||
| Fuzz | A100K | A100k | Potentiometer | read from the layout by eye |
Other boards based on the God City Instruments Uno Fuzz
- Unofuzz the original · God City Instruments · 125B · $10.00