Enclosure not stated · 3 knobs
BearFoot FX Pale Green CompressorVerified
Based on the BearFoot FX Pale Green Compressor· 3 other boards clone it
- Category
- Compressor
- Build
- Perfboard
- Layout
- Verified · Effects Layouts (blog) marks it as built and working
- Tags
- BearFoot FX, Compressor
From the post
Here's another great circuit by Bjorn (who also designs all the Mad Professor stuff). It's an optical compressor that's very similar to the Mad Professor Forrest Green Compressor. It's not too heavy handed, and is, as Bjorn has said, "The compressor for people who hate compressors."
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 29 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 4 values the reader of this layout was not sure of
- 110Ω (two, right edge, columns Q and T): printed clearly, unusual value
- 215Ω (centre, column M): printed clearly, unusual value
- LDR + D3 at the bottom centre: listed as two parts as drawn on the populated board; the wiring diagram shows one VTL5C6 optocoupler instead
- Tone pot printed as W20k dual-gang: W taper kept as printed
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 10 | ||||
| ×3 | 27K | 27k | read from the layout by eye | |
| ×3 | 2.2K | 2.2k | read from the layout by eye | |
| ×3 | 5.6K | 5.6k | read from the layout by eye | |
| ×2 | 1M | 1M | read from the layout by eye | |
| ×2 | 10K | 10k | read from the layout by eye | |
| ×2 | 110Ω | 110 | read from the layout by eye | |
| ×2 | 200K | 200k | read from the layout by eye | |
| ×1 | 215Ω | 215 | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| Capacitors 6 | ||||
| ×3 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×3 | 22uF | 22u | electrolytic; read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| ×3 | 100nF | 100n | read from the layout by eye | |
| ×1 | 100pF | 100p | read from the layout by eye | |
| ×1 | 47nF | 47n | read from the layout by eye | |
| Diodes 3 | ||||
| ×1 | 1N5817 | 1N5817 | read from the layout by eye | |
| D1 | 1N914 | 1N914 | or 1N4148; read from the layout by eye | |
| D2 | 1N914 | 1N914 | or 1N4148; read from the layout by eye | |
| Transistors 3 | ||||
| Q1 | BC550C | BC550C | read from the layout by eye | |
| Q2 | BC550C | BC550C | read from the layout by eye | |
| Q3 | BC550C | BC550C | read from the layout by eye | |
| ICs 2 | ||||
| IC1 | NE5534 | NE5534 | read from the layout by eye | |
| ×1 | 78L05 | 78L05 | regulator, named on the wiring diagram; read from the layout by eye | |
| Opto 1 | ||||
| ×1 | LDR | LDR | with D3 forms the optocoupler; wiring diagram shows VTL5C6; read from the layout by eye | |
| Potentiometers 3 | ||||
| Comp | A500K | A500k | Potentiometer | read from the layout by eye |
| Tone | W20K | W20k | Potentiometer | dual; read from the layout by eye |
| Volume | B50K | B50k | Potentiometer | read from the layout by eye |
| LEDs 1 | ||||
| D3 | ? | ? | value not given; red LED drawn beside the LDR, together the VTL5C6 of the wiring diagram; read from the layout by eye | |
Other boards based on the BearFoot FX Pale Green Compressor
- Bearfoot Fx / BJFe Pale Green Compressor Dirtbox Layouts
- Bearfoot FX Pale Green Compressor Revolution Deux
- BJFE Pale Green Compressor Tagboard Effects