Enclosure not stated · 5 knobs
Keeley Magnetic EchoVerified
Based on the Keeley Magnetic Echo· 5 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 33 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 10 | ||||
| ×9 | 10K | 10k | read from the layout by eye | |
| ×3 | 220K | 220k | read from the layout by eye | |
| ×3 | 100K | 100k | read from the layout by eye | |
| ×3 | 47K | 47k | read from the layout by eye | |
| ×3 | 1K | 1k | read from the layout by eye | |
| ×2 | 4.7K | 4.7k | read from the layout by eye | |
| ×2 | 120K | 120k | read from the layout by eye | |
| ×1 | 12K | 12k | read from the layout by eye | |
| ×1 | 15K | 15k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| Capacitors 11 | ||||
| ×6 | 100nF | 100n | read from the layout by eye | |
| ×2 | 2.2nF | 2.2n | read from the layout by eye | |
| ×2 | 22nF | 22n | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×1 | 47nF | 47n | read from the layout by eye | |
| ×1 | 330nF | 330n | read from the layout by eye | |
| ×5 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×2 | 47uF | 47u | electrolytic; read from the layout by eye | |
| ×2 | 100uF | 100u | electrolytic; read from the layout by eye | |
| ×1 | 4.7uF | 4.7u | electrolytic; read from the layout by eye | |
| ×1 | 10uF | 10u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×2 | 1N4148 | 1N4148 | D1, D2; read from the layout by eye | |
| D3 | 1N5817 | 1N5817 | read from the layout by eye | |
| ICs 4 | ||||
| IC1 | OPA2134 | OPA2134 | read from the layout by eye | |
| IC2 | PT2399 | PT2399 | read from the layout by eye | |
| IC3 | LM358N | LM358N | read from the layout by eye | |
| REG | 7805 | 7805 | regulator; read from the layout by eye | |
| Potentiometers 5 | ||||
| Time | B50K | B50k | Potentiometer | read from the layout by eye |
| Speed | B50K | B50k | Potentiometer | read from the layout by eye |
| Feedback | A100K | A100k | Potentiometer | read from the layout by eye |
| Depth | B100K | B100k | Potentiometer | read from the layout by eye |
| Level | B100K | B100k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×1 | 100K | 100k | read from the layout by eye | |
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