1590A · 1 knob
BearFoot FX Baby Pink BoosterVerified
Based on the BearFoot FX Baby Pink Booster· 4 other boards clone it
From the post
Here's a cool little booster from Bjorn. Fairly typical JFET boost but the way the originals are wired, when the effect is bypassed, it's buffer. This layout reflects that original wiring, so wire the In pad to the input jack, Out pad to the output jack, and use a DPDT footswitch. If want to wire it for true bypass, jumper the 2 switch pads at the top of the board and omit the 150k resistor going from lug 1 of the Boost pot to ground. Or you can wire up a SPST switch to go between buffer and boost. Lots of options with this little circuit. Works well off 18v too.
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 14 rows
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Check before you build · 1 value the reader of this layout was not sure of
- 14.7K (two, bottom row of vertical resistors): printed clearly, unusual value
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 6 | ||||
| ×2 | 2M | 2M | read from the layout by eye | |
| ×2 | 14.7K | 14.7k | read from the layout by eye | |
| ×2 | 1K | 1k | read from the layout by eye | |
| ×2 | 150K | 150k | read from the layout by eye | |
| ×1 | 12K | 12k | read from the layout by eye | |
| ×1 | 3.3K | 3.3k | read from the layout by eye | |
| Capacitors 5 | ||||
| ×1 | 47nF | 47n | read from the layout by eye | |
| ×1 | 100pF | 100p | read from the layout by eye | |
| ×1 | 1uF | 1u | read from the layout by eye | |
| ×1 | 22uF | 22u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| ×1 | 1N4002 | 1N4002 | printed 4002; read from the layout by eye | |
| Transistors 1 | ||||
| Q1 | 2N5952 | 2N5952 | JFET; read from the layout by eye | |
| Potentiometers 1 | ||||
| Boost | C50K | C50k | Potentiometer | printed 50K Rev log; read from the layout by eye |
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