125B · 3 knobs
PedalPCB· PCB012
Muffin Fuzz
Based on the Electro-Harmonix Big Muff Pi· 73 other boards clone it
- Category
- Distortion
- Price
- $12.00out of stock
- Tags
- 125B
From the vendor
Controls
• Volume – Controls the output volume
• Tone – Controls the tone
• Sustain – Controls the amount of fuzz
• Tone Bypass (Toggle switch) – Bypasses tone control
Details
• Designed for a 125B enclosure with top-mounted jacks
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 52 rows
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Variant
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 25 | ||||
| R1 | 39K | 39k | ||
| R2 | 100K | 100k | ||
| R3 | 470K | 470k | ||
| R4 | 12K | 12k | ||
| R5 | 390 | 390 | ||
| R6 | 1K | 1k | ||
| R7 | 10K | 10k | ||
| R8 | 100K | 100k | ||
| R9 | 470K | 470k | ||
| R10 | 12K | 12k | ||
| R11 | 390R | 390 | ||
| R12 | 10K | 10k | ||
| R13 | 100K | 100k | ||
| R14 | 470K | 470k | ||
| R15 | 12K | 12k | ||
| R16 | 390R | 390 | ||
| R17 | 20K | 20k | ||
| R18 | 22K | 22k | ||
| R19 | 100K | 100k | ||
| R20 | 470K | 470k | ||
| R21 | 10K | 10k | ||
| R22 | 2K | 2k | ||
| R23 | 1M | 1M | ||
| R24 | 150K | 150k | ||
| RLED | 4K7 | 4.7k | ||
| Capacitors 15 | ||||
| C1 | 100nF | 100n | ||
| C2 | 470pF | 470p | ||
| C3 | 100nF | 100n | ||
| C4 | 100nF | 100n | ||
| C5 | 47nF | 47n | ||
| C6 | 470pF | 470p | ||
| C7 | 100nF | 100n | ||
| C8 | 47nF | 47n | ||
| C9 | 470pF | 470p | ||
| C10 | 3.9nF | 3.9n | ||
| C11 | 10nF | 10n | ||
| C12 | 100nF | 100n | ||
| C13 | 100nF | 100n | ||
| C14 | 100uF | 100u | ||
| C15 | 100nF | 100n | ||
| Diodes 4 | ||||
| D1 | 1N914 | 1N914 | ||
| D2 | 1N914 | 1N914 | ||
| D3 | 1N914 | 1N914 | ||
| D4 | 1N914 | 1N914 | ||
| Transistors 4 | ||||
| Q1 | 2N5088 | 2N5088 | ||
| Q2 | 2N5088 | 2N5088 | ||
| Q3 | 2N5088 | 2N5088 | ||
| Q4 | 2N5088 | 2N5088 | ||
| Potentiometers 3 | ||||
| SUSTAIN | B100K | B100k | Potentiometer | |
| TONE | B100K | B100k | Potentiometer | |
| VOLUME | B100K | B100k | Potentiometer | |
| Switches 1 | ||||
| Tone Bypass Switch | DPDTON/ON | DPDTON/ON | ||
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