Enclosure not stated · 4 knobs
TC Electronics Mojo Mojo Overdrive
Based on the TC Electronics Mojo Mojo Overdrive
From the post
Per request. The layout stays mostly true to the schematic. One half of the op amps was unused to I used it for buffered Vref which doesn't hurt. Quite an interesting design if a bit over engineered.:-)
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 39 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 15 | ||||
| ×1 | 100Ω | 100 | read from the layout by eye | |
| ×1 | 330Ω | 330 | read from the layout by eye | |
| ×3 | 1K | 1k | read from the layout by eye | |
| ×3 | 3.3K | 3.3k | read from the layout by eye | |
| ×2 | 3.9K | 3.9k | read from the layout by eye | |
| ×1 | 4.3K | 4.3k | read from the layout by eye | |
| ×1 | 4.7K | 4.7k | read from the layout by eye | |
| ×7 | 10K | 10k | read from the layout by eye | |
| ×2 | 15K | 15k | read from the layout by eye | |
| ×1 | 18K | 18k | read from the layout by eye | |
| ×1 | 33K | 33k | read from the layout by eye | |
| ×2 | 47K | 47k | read from the layout by eye | |
| ×2 | 100K | 100k | read from the layout by eye | |
| ×1 | 330K | 330k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| Capacitors 14 | ||||
| ×1 | 47pF | 47p | read from the layout by eye | |
| ×1 | 100pF | 100p | read from the layout by eye | |
| ×1 | 220pF | 220p | read from the layout by eye | |
| ×1 | 820pF | 820p | read from the layout by eye | |
| ×2 | 1nF | 1n | read from the layout by eye | |
| ×1 | 8.2nF | 8.2n | read from the layout by eye | |
| ×2 | 47nF | 47n | read from the layout by eye | |
| ×6 | 100nF | 100n | read from the layout by eye | |
| ×2 | 220nF | 220n | read from the layout by eye | |
| ×2 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×1 | 4.7uF | 4.7u | electrolytic; read from the layout by eye | |
| ×3 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| ×2 | 220uF | 220u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×4 | 1N4148 | 1N4148 | D1-D4; read from the layout by eye | |
| D5 | 1N5817 | 1N5817 | read from the layout by eye | |
| ICs 3 | ||||
| IC1 | MC33178 | MC33178 | SMD in original; legend: Try NE5532, 4580, LM833 etc.; read from the layout by eye | |
| IC2 | MC33178 | MC33178 | SMD in original; legend: Try NE5532, 4580, LM833 etc.; read from the layout by eye | |
| IC3 | MC33178 | MC33178 | SMD in original; legend: Try NE5532, 4580, LM833 etc.; read from the layout by eye | |
| Potentiometers 4 | ||||
| Gain | C100K | C100k | 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 |
| Level | A10K | A10k | Potentiometer | legend calls it Volume; read from the layout by eye |
| Switches 1 | ||||
| Voice | SPDT on/on | SPDT ON/ON | toggle; read from the layout by eye | |