Enclosure not stated · 7 knobs
Death by Audio Echo Dream 2 w. charge pumpVerified
Based on the Death By Audio Echo Dream 2· 5 other boards clone it
From the post
Added an onboard charge pump to this one for 18v operation since the function generator IC XR2206P needs at least 10v to operate as it should.
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 47 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 17 | ||||
| ×12 | 10K | 10k | read from the layout by eye | |
| ×2 | 6.8K | 6.8k | read from the layout by eye | |
| ×2 | 13K | 13k | read from the layout by eye | |
| ×2 | 1K | 1k | read from the layout by eye | |
| ×2 | 470K | 470k | read from the layout by eye | |
| ×1 | 82K | 82k | read from the layout by eye | |
| ×1 | 2.7K | 2.7k | read from the layout by eye | |
| ×1 | 680Ω | 680 | read from the layout by eye | |
| ×1 | 3.6K | 3.6k | read from the layout by eye | |
| ×1 | 220Ω | 220 | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | 15K | 15k | read from the layout by eye | |
| ×1 | 3.3K | 3.3k | read from the layout by eye | |
| ×1 | 390Ω | 390 | read from the layout by eye | |
| ×1 | 100Ω | 100 | read from the layout by eye | |
| ×1 | 8.2K | 8.2k | read from the layout by eye | |
| ×1 | ? | ? | LED resistor, value not given; read from the layout by eye | |
| Capacitors 13 | ||||
| ×1 | 680nF | 680n | read from the layout by eye | |
| ×4 | 100nF | 100n | read from the layout by eye | |
| ×2 | 10nF | 10n | read from the layout by eye | |
| ×1 | 33nF | 33n | read from the layout by eye | |
| ×2 | 2.2nF | 2.2n | read from the layout by eye | |
| ×1 | 47nF | 47n | read from the layout by eye | |
| ×1 | 82nF | 82n | read from the layout by eye | |
| ×1 | 470pF | 470p | read from the layout by eye | |
| ×1 | 220pF | 220p | read from the layout by eye | |
| ×8 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×3 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×4 | 100uF | 100u | electrolytic; read from the layout by eye | |
| ×1 | 220uF | 220u | electrolytic; read from the layout by eye | |
| Diodes 3 | ||||
| D1 | 1N5817 | 1N5817 | read from the layout by eye | |
| D2 | 1N5817 | 1N5817 | read from the layout by eye | |
| D3 | 1N5817 | 1N5817 | read from the layout by eye | |
| ICs 5 | ||||
| IC1 | MC33172P | MC33172P | read from the layout by eye | |
| IC2 | PT2399 | PT2399 | read from the layout by eye | |
| IC3 | XR2206P | XR2206P | read from the layout by eye | |
| IC4 | ICL7660S | ICL7660S | charge pump; read from the layout by eye | |
| REG | 7805 | 7805 | regulator; read from the layout by eye | |
| Potentiometers 7 | ||||
| Fuzz | A1M | A1M | Potentiometer | read from the layout by eye |
| Speed | A1M | A1M | Potentiometer | read from the layout by eye |
| Feedback | C100K | C100k | Potentiometer | read from the layout by eye |
| Depth | C100K | C100k | Potentiometer | read from the layout by eye |
| Delay Blend | B100K | B100k | Potentiometer | read from the layout by eye |
| Delay Time | A100K | A100k | Potentiometer | read from the layout by eye |
| Master | A100K | A100k | Potentiometer | read from the layout by eye |
| Switches 2 | ||||
| Wet/Dry | SPDT on/on | SPDT ON/ON | toggle; read from the layout by eye | |
| Waveform | DPDT on/on | DPDT ON/ON | toggle; read from the layout by eye | |
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