Enclosure not stated · 2 knobs
Roland AD-50 Double Beat fuzz sectionVerified
Based on the Roland AD-50 Double Beat fuzz section
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 25 rows
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Check before you build · 2 values the reader of this layout was not sure of
- 250pF at column 15, rows J-L: printed clearly, unusual value
- Diode at column 9, rows H-J is labelled D3 on the board but the legend only lists D1: 1N5817; taken as the same part
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 11 | ||||
| ×3 | 22K | 22k | read from the layout by eye | |
| ×2 | 470K | 470k | read from the layout by eye | |
| ×2 | 150K | 150k | read from the layout by eye | |
| ×2 | 1M | 1M | read from the layout by eye | |
| ×1 | 120K | 120k | read from the layout by eye | |
| ×1 | 820K | 820k | read from the layout by eye | |
| ×1 | 2.2K | 2.2k | read from the layout by eye | |
| ×1 | 220K | 220k | read from the layout by eye | |
| ×1 | 330K | 330k | read from the layout by eye | |
| ×1 | 1.2K | 1.2k | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| Capacitors 7 | ||||
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×2 | 100nF | 100n | read from the layout by eye | |
| ×2 | 6.8nF | 6.8n | read from the layout by eye | |
| ×1 | 47pF | 47p | read from the layout by eye | |
| ×1 | 250pF | 250p | read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| ×2 | 1uF | 1u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| D1 | 1N5817 | 1N5817 | printed D3 on the board; read from the layout by eye | |
| Transistors 3 | ||||
| Q1 | 2N2222 | 2N2222 | legend: 2N2222, 2N3904, MPSA06 etc; 2SC1000 in original; read from the layout by eye | |
| Q2 | 2N2222 | 2N2222 | legend: 2N2222, 2N3904, MPSA06 etc; 2SC1000 in original; read from the layout by eye | |
| Q3 | 2N2222 | 2N2222 | legend: 2N2222, 2N3904, MPSA06 etc; 2SC1000 in original; read from the layout by eye | |
| Potentiometers 2 | ||||
| Sustain | B10K | B10k | Potentiometer | read from the layout by eye |
| Volume | B50K | B50k | Potentiometer | read from the layout by eye |
| Switches 1 | ||||
| Switch | 4P3T rotary | 4P3T ROTARY | rotary; read from the layout by eye | |