Enclosure not stated · 4 knobs
Mad Professor Royal Blue OverdriveVerified
Based on the Mad Professor Royal Blue Overdrive· 2 other boards clone it
From the post
Schematic 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 30 rows
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Check before you build · 1 value the reader of this layout was not sure of
- 14.7K, two of them (column 3 rows K-N and column 14 rows J-L): printed clearly, unusual value
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 10 | ||||
| ×4 | 5.6K | 5.6k | read from the layout by eye | |
| ×4 | 1M | 1M | read from the layout by eye | |
| ×2 | 1K | 1k | read from the layout by eye | |
| ×2 | 2K | 2k | read from the layout by eye | |
| ×2 | 14.7K | 14.7k | read from the layout by eye | |
| ×1 | 4.7K | 4.7k | read from the layout by eye | |
| ×1 | 3.6K | 3.6k | read from the layout by eye | |
| ×1 | 200K | 200k | read from the layout by eye | |
| ×1 | 330Ω | 330 | read from the layout by eye | |
| ×1 | 47Ω | 47 | read from the layout by eye | |
| Capacitors 12 | ||||
| ×1 | 100pF | 100p | read from the layout by eye | |
| ×1 | 220pF | 220p | read from the layout by eye | |
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×1 | 3.3nF | 3.3n | read from the layout by eye | |
| ×1 | 4.7nF | 4.7n | read from the layout by eye | |
| ×2 | 22nF | 22n | read from the layout by eye | |
| ×1 | 47nF | 47n | read from the layout by eye | |
| ×2 | 100nF | 100n | read from the layout by eye | |
| ×1 | 220nF | 220n | read from the layout by eye | |
| ×3 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×1 | 4.7uF | 4.7u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| D3 | 1N4007 | 1N4007 | read from the layout by eye | |
| ICs 1 | ||||
| IC1 | JRC4558DD | JRC4558DD | read from the layout by eye | |
| Potentiometers 4 | ||||
| Gain | A1M | A1M | Potentiometer | read from the layout by eye |
| Treble | B50K | B50k | Potentiometer | read from the layout by eye |
| Bass | B50K | B50k | Potentiometer | read from the layout by eye |
| Volume | B50K | B50k | Potentiometer | read from the layout by eye |
| LEDs 2 | ||||
| D1 | 3mm red LED | 3MM RED LED | read from the layout by eye | |
| D2 | 3mm red LED | 3MM RED LED | read from the layout by eye | |
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