Enclosure not stated · 4 knobs
Blue Colander GT420 Overdrive/Distortion Mk.1
Based on the Blue Colander GT420 Overdrive/Distortion Mk.1
From the post
Schematic and and description is avaiable HERE. Made the Tone Bypass and Dark mode switching external.
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 37 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 2 values the reader of this layout was not sure of
- Boost and Tone pots: legend gives one line 'Boost & Tone: 100kB', read as two separate B100K pots
- Dark and Tone Bypass switches: legend gives one line 'Dark & Tone Bypass Sw: SPST', read as two separate SPST switches
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 11 | ||||
| ×2 | ? | ? | LED resistor, value not given; read from the layout by eye | |
| ×1 | 1.5K | 1.5k | read from the layout by eye | |
| ×1 | 100Ω | 100 | read from the layout by eye | |
| ×2 | 100K | 100k | read from the layout by eye | |
| ×4 | 10K | 10k | read from the layout by eye | |
| ×1 | 470K | 470k | read from the layout by eye | |
| ×2 | 1M | 1M | read from the layout by eye | |
| ×1 | 2.2M | 2.2M | read from the layout by eye | |
| ×1 | 270Ω | 270 | read from the layout by eye | |
| ×1 | 3.9K | 3.9k | read from the layout by eye | |
| ×1 | 68K | 68k | read from the layout by eye | |
| Capacitors 12 | ||||
| ×5 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×1 | 220uF | 220u | electrolytic; read from the layout by eye | |
| ×3 | 1uF | 1u | read from the layout by eye | |
| ×2 | 120nF | 120n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×2 | 18nF | 18n | read from the layout by eye | |
| ×2 | 8.2nF | 8.2n | read from the layout by eye | |
| ×1 | 5.6nF | 5.6n | read from the layout by eye | |
| ×1 | 3.3nF | 3.3n | read from the layout by eye | |
| ×2 | 2.2nF | 2.2n | read from the layout by eye | |
| ×1 | 330pF | 330p | read from the layout by eye | |
| ×1 | 100pF | 100p | read from the layout by eye | |
| Diodes 2 | ||||
| ×3 | BAT42 | BAT42 | D1, D2, D3; read from the layout by eye | |
| D4 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 2 | ||||
| Q1 | 2N3904 | 2N3904 | read from the layout by eye | |
| Q2 | BC337-40 | BC337-40 | read from the layout by eye | |
| ICs 1 | ||||
| IC1 | LM386 | LM386 | read from the layout by eye | |
| Potentiometers 4 | ||||
| Gain | B10K | B10k | Potentiometer | dual; read from the layout by eye |
| Boost | B100K | B100k | 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 |
| Trimmers 1 | ||||
| Bias | 50K | 50k | read from the layout by eye | |
| Switches 4 | ||||
| Shape | DPDT on/off/on | DPDT ON/OFF/ON | toggle; read from the layout by eye | |
| Dark | SPST | SPST | read from the layout by eye | |
| Tone Bypass | SPST | SPST | read from the layout by eye | |
| Boost | 3PDT | 3PDT | footswitch; read from the layout by eye | |