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Base pedal: Hermida Audio Zendrive
Based on the Hermida Zendrive overdrive, a compact circuit with Gain, Tone, Voice, and Volume controls. The Voice knob adjusts bass response and gain structure, making it a Dumble-inspired overdrive with low parts count.
Component Name | Type | Default Part | Qty |
|---|---|---|---|
| 100R | RESISTOR | MFR-25-100R | 1 |
| 1K | RESISTOR | 3 | |
| 10K | RESISTOR | 4 | |
| 470K | RESISTOR | 1 | |
| 2M2 | RESISTOR | 1 | |
| 100p MLCC | CAPACITOR | 1 | |
| 3n3 Film | CAPACITOR | 1 | |
| 100n Film | CAPACITOR | 1 | |
| 100n MLCC | CAPACITOR | 1 | |
| 470n Film | CAPACITOR | 2 | |
| 47u Electrolytic | CAPACITOR | ELECTRO-16V-47U | 1 |
| 100u Electrolytic | CAPACITOR | ELECTRO-16V-100U | 1 |
| NE5532P | IC | NE5532P | 1 |
| 2N7000 | TRANSISTOR | 2N7000 | 2 |
| 1N5817 | DIODE | 1N5817 | 1 |
| BAT41 | DIODE | BAT41 | 3 |
| 5mm Red | LED | 1 | |
| B10K 16mm | POTENTIOMETER | 1 | |
| B50K 16mm | POTENTIOMETER | 1 | |
| B100K 16mm | POTENTIOMETER | B100K-16MM | 1 |
| A500K 16mm | POTENTIOMETER | A500K-16MM | 1 |
| 3PDT Stomp | SWITCH | 1 | |
| 125B | ENCLOSURE | 1 | |
| 9V Battery Snap | CONNECTOR | BATTERY-SNAP-9V | 1 |
| Jack 1/4" TR | JACK | 1 | |
| Jack 1/4" TRS | JACK | 1 | |
| Jack 2.1mm DC | JACK | 1 |