125B · 5 knobs
From the vendor
Controls
• Volume – Adjust output volume level
• Drive – Controls the amount of distortion
• Compress – Adjusts attack/tonal characteristic
• Gate – Chokes off squeals and oscillations
• Stability – Controls the firmness of fuzz
Details
• Designed for a 125B enclosure with top-mounted jacks
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PedalPCB is in no way affiliated with ZVEX Effects.
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 21 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 7 | ||||
| R1 | 220K | 220k | ||
| R2 | 10K | 10k | ||
| R3 | 47K | 47k | ||
| R4 | 470 | 470 | ||
| R5 | 5.1K | 5.1k | ||
| R6 | 220K | 220k | ||
| R7 | 4K7 | 4.7k | ||
| Capacitors 5 | ||||
| C1 | 10uF | 10u | ||
| C2 | 100nF | 100n | ||
| C3 | 10uF | 10u | ||
| C4 | 10uF | 10u | ||
| C5 | 47uF | 47u | ||
| Diodes 1 | ||||
| D1 | 1N5817 | 1N5817 | ||
| Transistors 3 | ||||
| Q1 | 2N3904 | 2N3904 | ||
| Q2 | AC128 | AC128 | ||
| Q3 | AC128 | AC128 | ||
| Potentiometers 5 | ||||
| COMP | B10K | B10k | Potentiometer | |
| DRIVE | B10K | B10k | Potentiometer | |
| GATE | B10K | B10k | Potentiometer | |
| STAB | B5K | B5k | Potentiometer | |
| VOL | B5K | B5k | Potentiometer | |