1590B · 3 knobs
EarthQuaker Devices PlumesVerified
Based on the EarthQuaker Devices Plumes· 8 other boards clone it
From the post
Today's layout is the EQD Plumes. It's based on the Tube Screamer but with a load of tweaks, including the usual BJT buffers replaced with op amp buffers, selectable clipping, and a charge pump to provide a bipolar supply. Should fit nicely in a 1590B.
Here's the schematic as requested:
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 Effects Layouts (blog). No KiCad fragment has been drawn for this circuit yet.
Parts list 26 rows
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Check before you build · 2 values the reader of this layout was not sure of
- Tone pot: legend prints W20k (W taper), kept as printed
- IC printed only as 1044 (charge pump; maker prefix not given)
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 8 | ||||
| ×5 | 1K | 1k | read from the layout by eye | |
| ×2 | 10K | 10k | read from the layout by eye | |
| ×2 | 1M | 1M | read from the layout by eye | |
| ×1 | 10M | 10M | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 330Ω | 330 | read from the layout by eye | |
| ×1 | 100Ω | 100 | read from the layout by eye | |
| Capacitors 8 | ||||
| ×2 | 56pF | 56p | 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 | |
| ×1 | 470nF | 470n | read from the layout by eye | |
| ×3 | 1uF | 1u | drawn as box film caps; read from the layout by eye | |
| ×2 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×2 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×1 | 1N5817 | 1N5817 | printed 5817; read from the layout by eye | |
| ×3 | 1N4148 | 1N4148 | printed 4148; read from the layout by eye | |
| ICs 2 | ||||
| ×1 | 1044 | 1044 | charge pump, printed 1044; read from the layout by eye | |
| ×1 | TL074 | TL074 | read from the layout by eye | |
| Potentiometers 3 | ||||
| Gain | B1M | B1M | Potentiometer | read from the layout by eye |
| Level | B100K | B100k | Potentiometer | read from the layout by eye |
| Tone | W20K | W20k | Potentiometer | W taper as printed; read from the layout by eye |
| Switches 1 | ||||
| Mode | SPDT on/off/on | SPDT ON/OFF/ON | toggle; read from the layout by eye | |
| LEDs 2 | ||||
| D1 | 3mm red LED | 3MM RED LED | on board; read from the layout by eye | |
| D2 | 3mm red LED | 3MM RED LED | on board; read from the layout by eye | |
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