125B · 3 knobs
From the vendor
The Kakapo Distortion is a PCB based on the Kokko Distortion, which seems to be a combination of a TubeScreamer and a RAT. This pedal was a collaboration with Cybercow (moo) on the PedalPCB forums. Cybercow traced the circuit and made a few modifications, which I've validated. The result is a fairly intense distortion sound. One peculiarity of this pedal is that unlike a lot of the other boutique circuits I've laid out, Kokko pedals are mostly bargain-basement clones. It still sounds great, though!
Schematic
The schematic is in the vendor's build document. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 48 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 22 | ||||
| R1 | 10K | 10k | 1/4W Resistor | |
| R2 | 470K | 470k | 1/4W Resistor | |
| R3 | 100K | 100k | 1/4W Resistor | |
| R4 | 1K5 | 1.5k | 1/4W Resistor | |
| R5 | 10K | 10k | 1/4W Resistor | |
| R6 | 10K | 10k | 1/4W Resistor | |
| R7 | 10K | 10k | 1/4W Resistor | |
| R8 | 75R | 75 | 1/4W Resistor | |
| R9 | 12K | 12k | 1/4W Resistor | |
| R10 | 1K | 1k | 1/4W Resistor | |
| R11 | 10K | 10k | 1/4W Resistor | |
| R12 | 12K | 12k | 1/4W Resistor | |
| R13 | 47K | 47k | 1/4W Resistor | |
| R14 | 470K | 470k | 1/4W Resistor | |
| R15 | 10K | 10k | 1/4W Resistor | |
| R16 | 100R | 100 | 1/4W Resistor | |
| R17 | 10K | 10k | 1/4W Resistor | |
| R18 | 100R | 100 | 1/4W Resistor | |
| R19 | 56K | 56k | 1/4W Resistor | |
| R20 | 56K | 56k | 1/4W Resistor | |
| R21 | 33K | 33k | 1/4W Resistor | |
| R100 | 4K7 | 4.7k | 1/4W Resistor | LEDR |
| Capacitors 14 | ||||
| C1 | 22N | 22n | Film Capacitor | |
| C2 | 100N | 100n | Film Capacitor | |
| C3 | 33N | 33n | Film Capacitor | |
| C4 | 820P | 820p | MLCC Capacitor | |
| C5 | 2U2 | 2.2u | Electrolytic Capacitor | |
| C6 | 6N8 | 6.8n | Film Capacitor | |
| C7 | 820P | 820p | MLCC Capacitor | |
| C8 | 1U | 1u | Film Capacitor | Can be electrolytic |
| C9 | 100N | 100n | Electrolytic Capacitor | |
| C10 | 100N | 100n | 1/4W Resistor | |
| C11 | 10U | 10u | Electrolytic Capacitor | |
| C12 | 100U | 100u | Electrolytic Capacitor | |
| C13 | 47U | 47u | Electrolytic Capacitor | |
| C14 | 100N | 100n | Film Capacitor | |
| Diodes 3 | ||||
| D1 | 1N5817 | 1N5817 | Schottky Diode | |
| D4 | 1N914 | 1N914 | Diode | |
| D5 | 1N914 | 1N914 | Diode | |
| Transistors 2 | ||||
| Q1 | 2N5088 | 2N5088 | NPN Transistor | Or 2N3904 |
| Q2 | 2N5088 | 2N5088 | NPN Transistor | Or 2N3904 |
| ICs 1 | ||||
| U1 | LM358 | LM358 | Integrated Circuit | |
| Potentiometers 3 | ||||
| Tone | B10K | B10k | 16mm potentiometer | |
| Gain | A100K | A100k | 16mm potentiometer | |
| Level | B100K | B100k | 16mm potentiometer | |
| LEDs 3 | ||||
| D2 | LED | LED | LED | |
| D3 | LED | LED | LED | |
| D100 | LED | LED | LED | Bypass indicator |