Enclosure not stated · 4 knobs
Lovepedal Zendrive 2Verified
Based on the Hermida Zendrive· 19 other boards clone it
From the post
The Zendrive 2 is a big box version of the Zendrive, using a 12AX7 internally. Sadly the tube is only being used for clipping, replacing the BAT41 and 1N34a diodes in the small box Zendrive. But according to reliable sources, it sound very good, with some harmonic mojo happening. Other than the tube clipping, there's only a few value changes from the small box version. Schematic for reference.
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 Effects Layouts (blog). No KiCad fragment has been drawn for this circuit yet.
Parts list 19 rows
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Check before you build · 1 value the reader of this layout was not sure of
- CX (ceramic cap left of the IC): no single value, legend gives the range 51-220pF
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 4 | ||||
| ×3 | 1K | 1k | read from the layout by eye | |
| ×3 | 10K | 10k | read from the layout by eye | |
| ×1 | 470K | 470k | read from the layout by eye | |
| ×1 | 2M | 2M | read from the layout by eye | |
| Capacitors 6 | ||||
| CX | 51-220pF | 51-220PF | legend: CX: 51-220pF; read from the layout by eye | |
| ×1 | 3.3nF | 3.3n | read from the layout by eye | |
| ×1 | 220nF | 220n | read from the layout by eye | |
| ×2 | 470nF | 470n | read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| ×1 | 1N4001 | 1N4001 | read from the layout by eye | |
| Transistors 2 | ||||
| Q1 | 2N7000 | 2N7000 | MOSFET; read from the layout by eye | |
| Q2 | 2N7000 | 2N7000 | MOSFET; read from the layout by eye | |
| ICs 1 | ||||
| ×1 | AD712 | AD712 | read from the layout by eye | |
| Potentiometers 4 | ||||
| Gain | B1M | B1M | Potentiometer | read from the layout by eye |
| Voice | B10K | B10k | Potentiometer | read from the layout by eye |
| Tone | B50K | B50k | Potentiometer | read from the layout by eye |
| Volume | A100K | A100k | Potentiometer | read from the layout by eye |
| Other 1 | ||||
| Tube | 12AX7 | 12AX7 | vacuum tube, off board; read from the layout by eye | |
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