Enclosure not stated · 3 knobs
Reeves Electro Zo:Verified
Based on the Reeves Electro Zo· 1 other board clones it
From the post
A modified and improved Hornby Skewes silicon Zonk 2 that goes for big bucks. Schematic and a breadboard session(!) is avaiable HERE. It seems that silicon transistors in the 150-200 hFe range works best in this circuit. *Update 240203* Reeves Electro got in touch with Gray Bench since two of the pot values was incorrect in the trace. Layout and schematic is updated.
Schematic
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 16 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 5 | ||||
| ×1 | 47K | 47k | read from the layout by eye | |
| ×2 | 220K | 220k | read from the layout by eye | |
| ×1 | 680K | 680k | read from the layout by eye | |
| ×1 | 3.3K | 3.3k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| Capacitors 5 | ||||
| ×1 | 470pF | 470p | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×1 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×1 | 22uF | 22u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| D1 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 2 | ||||
| Q1 | 2N3903 | 2N3903 | legend: 2N3903, PN2222, MPSA06 etc. (NOS 2N3416 in original); read from the layout by eye | |
| Q2 | 2N3903 | 2N3903 | legend: 2N3903, PN2222, MPSA06 etc. (NOS 2N3416 in original); read from the layout by eye | |
| Potentiometers 3 | ||||
| Drift | B50K | B50k | Potentiometer | read from the layout by eye |
| Texture | B10K | B10k | Potentiometer | read from the layout by eye |
| Swell | A500K | A500k | Potentiometer | read from the layout by eye |
Other boards based on the Reeves Electro Zo
- Reeves Electro Zo: Effects Layouts (blog)