Enclosure not stated · 3 knobs
Boss SD-2 Lead ChannelVerified
Based on the Boss SD-2 Lead Channel
- Category
- Distortion
- Build
- Vero· 21×25· 38 cuts, 18 links
- Layout
- Verified · Dirtbox Layouts marks it as built and working
- Tags
- Boss, Distortion, Overdrive
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 43 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 14 | ||||
| ×6 | 100K | 100k | read from the layout by eye | |
| ×4 | 10K | 10k | read from the layout by eye | |
| ×3 | 1K | 1k | read from the layout by eye | |
| ×3 | 2.2K | 2.2k | read from the layout by eye | |
| ×3 | 4.7K | 4.7k | read from the layout by eye | |
| ×3 | 1M | 1M | read from the layout by eye | |
| ×2 | 47K | 47k | read from the layout by eye | |
| ×2 | 220K | 220k | read from the layout by eye | |
| ×1 | 12K | 12k | 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 | 33K | 33k | read from the layout by eye | |
| ×1 | 470K | 470k | read from the layout by eye | |
| ×1 | ? | ? | LED resistor, value not given; read from the layout by eye | |
| Capacitors 17 | ||||
| ×1 | 68pF | 68p | read from the layout by eye | |
| ×1 | 100pF | 100p | read from the layout by eye | |
| ×1 | 180pF | 180p | read from the layout by eye | |
| ×1 | 220pF | 220p | read from the layout by eye | |
| ×1 | 470pF | 470p | read from the layout by eye | |
| ×1 | 8.2nF | 8.2n | read from the layout by eye | |
| ×1 | 15nF | 15n | read from the layout by eye | |
| ×2 | 22nF | 22n | read from the layout by eye | |
| ×2 | 27nF | 27n | read from the layout by eye | |
| ×5 | 47nF | 47n | read from the layout by eye | |
| ×1 | 68nF | 68n | read from the layout by eye | |
| ×1 | 82nF | 82n | read from the layout by eye | |
| ×2 | 100nF | 100n | read from the layout by eye | |
| ×1 | 1uF | 1u | film box; read from the layout by eye | |
| ×3 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×3 | 1N4148 | 1N4148 | D3, D4, D5; legend: 1N4148/1N914; read from the layout by eye | |
| D6 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 3 | ||||
| Q1 | 2SK30 | 2SK30 | JFET; 2SK184 in original; read from the layout by eye | |
| Q2 | Low to medium gain NPN silicon | LOW TO MEDIUM GAIN NPN SILICON | 2SC3378-GR in original; read from the layout by eye | |
| Q3 | Low to medium gain NPN silicon | LOW TO MEDIUM GAIN NPN SILICON | 2SC3378-GR in original; read from the layout by eye | |
| ICs 3 | ||||
| IC1 | JRC4558 | JRC4558 | read from the layout by eye | |
| IC2 | JRC4558 | JRC4558 | read from the layout by eye | |
| IC3 | JRC4558 | JRC4558 | read from the layout by eye | |
| Potentiometers 3 | ||||
| Gain | A250K | A250k | Potentiometer | read from the layout by eye |
| Tone | B10K | B10k | Potentiometer | read from the layout by eye |
| Volume | A100K | A100k | Potentiometer | read from the layout by eye |
| LEDs 1 | ||||
| ×2 | 3mm red LED | 3MM RED LED | D1, D2; read from the layout by eye | |