1590B · 3 knobs
Jon Patton's Clipper ShipVerified
Based on the Jon Patton Clipper Ship· the maker's own board is Clipper Ship by Jon Patton
From the post
Jon has contributed a lot to the DIY pedal building community and I always learn something new when I layout one of his circuits. So I think we'll have a Jon Patton week, starting with the Clipper Ship. There's a good bit of flexibility with this one. Q1 can be pretty much any low gain transistor, germanium or silicon. If you're using a germanium transistor, use a germanium diode for D2 (if you're using a silicon transistor, omit D2). For D3-4 use anything with a low clipping threshold–1N60, 1N34, BAT41, etc. Q2-3 form a cascaded JFET stage (much like the AMZ Mini-Booster and a ton of other designs). Way more info on the circuit can be found here, including the schematic. I've laid it out for a typical 1590B with board mounted pots.
Oh, and D1 is a 1N5817 or similar for power protection.
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 25 rows
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Check before you build · 1 value the reader of this layout was not sure of
- D4 (row K, column 8, next to D3): drawn as a diode but the legend only covers D1-3, so its type is not given
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 10 | ||||
| ×5 | 10K | 10k | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| ×1 | 270Ω | 270 | read from the layout by eye | |
| ×1 | 2.2K | 2.2k | read from the layout by eye | |
| ×2 | 2.2M | 2.2M | read from the layout by eye | |
| ×1 | 4.7M | 4.7M | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×1 | 4.7K | 4.7k | read from the layout by eye | |
| ×1 | 560Ω | 560 | read from the layout by eye | |
| ×1 | 10M | 10M | read from the layout by eye | |
| Capacitors 5 | ||||
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×3 | 100nF | 100n | read from the layout by eye | |
| ×3 | 1uF | 1u | film box; read from the layout by eye | |
| ×1 | 4.7uF | 4.7u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 4 | ||||
| D1 | Germanium | GERMANIUM | legend: D1-3 Germanium*, see description; read from the layout by eye | |
| D2 | Germanium | GERMANIUM | legend: D1-3 Germanium*, see description; read from the layout by eye | |
| D3 | Germanium | GERMANIUM | legend: D1-3 Germanium*, see description; read from the layout by eye | |
| D4 | ? | ? | value not given; read from the layout by eye | |
| Transistors 3 | ||||
| Q1 | NPN | NPN | legend: NPN*, see description; read from the layout by eye | |
| Q2 | 2N5457 | 2N5457 | JFET; read from the layout by eye | |
| Q3 | 2N5457 | 2N5457 | JFET; read from the layout by eye | |
| Potentiometers 3 | ||||
| Gain | C5K | C5k | Potentiometer | read from the layout by eye |
| Tone | B100K | B100k | Potentiometer | read from the layout by eye |
| Volume | A100K | A100k | Potentiometer | read from the layout by eye |
Other boards based on the Jon Patton Clipper Ship
- Clipper Ship the original · Jon Patton · $12.70