Enclosure not stated · 3 knobs
Boss SD-1 Super Overdrive
Based on the Boss SD-1· 9 other boards clone it
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 26 rows
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Check before you build · 1 value the reader of this layout was not sure of
- Tone pot printed '20kW': entered as W20K, W taper as printed
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 9 | ||||
| ×1 | 470Ω | 470 | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×2 | 4.7K | 4.7k | read from the layout by eye | |
| ×5 | 10K | 10k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×3 | 33K | 33k | read from the layout by eye | |
| ×2 | 100K | 100k | read from the layout by eye | |
| ×1 | 470K | 470k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| Capacitors 7 | ||||
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×2 | 18nF | 18n | read from the layout by eye | |
| ×3 | 47nF | 47n | read from the layout by eye | |
| ×1 | 220nF | 220n | read from the layout by eye | |
| ×2 | 1uF | 1u | 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 4 | ||||
| D1 | 1N4148 | 1N4148 | 1N4148/1N914; 1S2473 in original; read from the layout by eye | |
| D2 | 1N4148 | 1N4148 | 1N4148/1N914; 1S2473 in original; read from the layout by eye | |
| D3 | 1N4148 | 1N4148 | 1N4148/1N914; 1S2473 in original; read from the layout by eye | |
| D4 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 2 | ||||
| Q1 | 2N5088 | 2N5088 | 2N5088, 2N3904 etc.; 2SC732TM-GR in original; read from the layout by eye | |
| Q2 | 2N5088 | 2N5088 | 2N5088, 2N3904 etc.; 2SC732TM-GR in original; read from the layout by eye | |
| ICs 1 | ||||
| IC1 | uPC4558C | UPC4558C | read from the layout by eye | |
| Potentiometers 3 | ||||
| Drive | B1M | B1M | Potentiometer | read from the layout by eye |
| Tone | W20K | W20k | Potentiometer | read from the layout by eye |
| Level | B10K | B10k | Potentiometer | read from the layout by eye |
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