Enclosure not stated · 3 knobs
Boss SD-2 Crunch ChannelVerified
Based on the Boss SD-2 Crunch Channel
From the post
Per request. Schematic is avaiable HERE and a verified layout for the Lead Channel is avaiable HERE.
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 28 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 11 | ||||
| ×3 | 10K | 10k | read from the layout by eye | |
| ×3 | 4.7K | 4.7k | read from the layout by eye | |
| ×2 | 1M | 1M | read from the layout by eye | |
| ×1 | 680Ω | 680 | read from the layout by eye | |
| ×1 | 560Ω | 560 | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| ×1 | 2.2K | 2.2k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×1 | 470K | 470k | read from the layout by eye | |
| Capacitors 8 | ||||
| ×1 | 22pF | 22p | read from the layout by eye | |
| ×2 | 2.7nF | 2.7n | read from the layout by eye | |
| ×1 | 22nF | 22n | read from the layout by eye | |
| ×1 | 39nF | 39n | read from the layout by eye | |
| ×3 | 47nF | 47n | read from the layout by eye | |
| ×2 | 1uF | 1u | read from the layout by eye | |
| ×1 | 4.7uF | 4.7u | electrolytic; read from the layout by eye | |
| ×2 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| D1 | 1N4148 | 1N4148 | legend: 1N4148/1N914; read from the layout by eye | |
| D4 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 2 | ||||
| Q1 | J201 | J201 | JFET; legend: J201, 2N5457 etc. (2SK184-GR in original); read from the layout by eye | |
| Q2 | 2N3904 | 2N3904 | legend: 2N3904, 2N5088 etc. (2SC3387-GR in original); read from the layout by eye | |
| ICs 1 | ||||
| IC1 | 4558 | 4558 | legend: 4558, 4580, LM833 etc. (1/2 5218AL in original); read from the layout by eye | |
| Potentiometers 3 | ||||
| Drive | A250K | A250k | Potentiometer | read from the layout by eye |
| Tone | B10K | B10k | Potentiometer | read from the layout by eye |
| Level | A100K | A100k | Potentiometer | read from the layout by eye |
| LEDs 1 | ||||
| ×2 | 3mm red LED | 3MM RED LED | D2, D3; read from the layout by eye | |