1590B · 3 knobs
Keeley Rotten AppleVerified
Based on the Keeley Rotten Apple· 2 other boards clone it
From the post
Happy Fuzz Friday, everyone! Here's another one of Robert Keeley's takes on the IC Big Muff with a quad opamp (the other being the Psi Fuzz). Pots are board mounted and it should fit into a 1590B.
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 30 rows
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Check before you build · 1 value the reader of this layout was not sure of
- Switch: legend prints 'SPST on/off/on', which with three wires (Sw1-Sw3) is really an SPDT on/off/on; kept as printed
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 14 | ||||
| ×1 | 220Ω | 220 | read from the layout by eye | |
| ×1 | 1.5K | 1.5k | read from the layout by eye | |
| ×1 | 3.9K | 3.9k | read from the layout by eye | |
| ×1 | 4.7K | 4.7k | read from the layout by eye | |
| ×2 | 5.6K | 5.6k | read from the layout by eye | |
| ×3 | 10K | 10k | read from the layout by eye | |
| ×1 | 15K | 15k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×1 | 27K | 27k | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 220K | 220k | read from the layout by eye | |
| ×2 | 470K | 470k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| Capacitors 8 | ||||
| ×1 | 330pF | 330p | read from the layout by eye | |
| ×2 | 4.7nF | 4.7n | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×2 | 100nF | 100n | read from the layout by eye | |
| ×1 | 470nF | 470n | read from the layout by eye | |
| ×3 | 1uF | 1u | box film, not electrolytic; read from the layout by eye | |
| ×2 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| ×1 | 1N5817 | 1N5817 | read from the layout by eye | |
| ICs 1 | ||||
| ×1 | TL074 | TL074 | read from the layout by eye | |
| Potentiometers 3 | ||||
| Buzz | B100K | B100k | Potentiometer | read from the layout by eye |
| Tone | B10K | B10k | Potentiometer | read from the layout by eye |
| Loud | A50K | A50k | Potentiometer | read from the layout by eye |
| Switches 1 | ||||
| Switch | SPST on/off/on | SPST ON/OFF/ON | toggle, as printed in the legend; wires Sw1-Sw3; read from the layout by eye | |
| LEDs 2 | ||||
| D1 | 3mm red LED | 3MM RED LED | read from the layout by eye | |
| D2 | 3mm red LED | 3MM RED LED | read from the layout by eye | |
Other boards based on the Keeley Rotten Apple
- Keeley Rotten Apple Dirtbox Layouts
- Sour Grape Fuzz PedalPCB · 125B · $8.00