Enclosure not stated · 4 knobs
Marshall JMC900 Pedal
Based on the Marshall JMC900 Pedal
- Category
- Preamp / Amp-in-a-box
- Build
- Vero· 24×22· 38 cuts, 20 links
- Layout
- Unverified · no build reported at Dirtbox Layouts yet
- Tags
- Amp Emulator, Distortion, Marshall
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 35 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 11 | ||||
| ×3 | 1K | 1k | read from the layout by eye | |
| ×6 | 10K | 10k | read from the layout by eye | |
| ×1 | 22Ω | 22 | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×1 | 5.6K | 5.6k | read from the layout by eye | |
| ×4 | 470K | 470k | read from the layout by eye | |
| ×2 | 100K | 100k | read from the layout by eye | |
| ×4 | 4.7K | 4.7k | read from the layout by eye | |
| ×1 | 15K | 15k | read from the layout by eye | |
| ×2 | 2.2M | 2.2M | read from the layout by eye | |
| ×1 | ? | ? | LED resistor, value not given; read from the layout by eye | |
| Capacitors 15 | ||||
| ×1 | 220pF | 220p | read from the layout by eye | |
| ×2 | 100pF | 100p | read from the layout by eye | |
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×1 | 2.7nF | 2.7n | read from the layout by eye | |
| ×1 | 4.7nF | 4.7n | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×1 | 22nF | 22n | read from the layout by eye | |
| ×1 | 33nF | 33n | read from the layout by eye | |
| ×1 | 47nF | 47n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×5 | 220nF | 220n | read from the layout by eye | |
| ×3 | 470nF | 470n | read from the layout by eye | |
| ×2 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| ×1 | 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 | TL072 | TL072 | read from the layout by eye | |
| IC2 | TL072 | TL072 | read from the layout by eye | |
| IC3 | NE5532 | NE5532 | legend: NE5532, 4580 etc. (SMD MC33178 in original); read from the layout by eye | |
| Potentiometers 4 | ||||
| Gain | A100K | A100k | Potentiometer | read from the layout by eye |
| Volume | A100K | A100k | Potentiometer | read from the layout by eye |
| Tone | B10K | B10k | Potentiometer | read from the layout by eye |
| Contour | A10K | A10k | Potentiometer | read from the layout by eye |