Enclosure not stated · 3 knobs
Electro Harmonix Black Finger Compressor/Sustainer
Based on the Electro-Harmonix Black Finger Compressor/Sustainer
- Category
- Compressor
- Difficulty
- Difficult
- Build
- Vero· 22×23· 46 cuts, 28 links
- Layout
- Unverified · no build reported at Tagboard Effects yet
- Tags
- Black Finger, Compressor, Electro Harmonix
From the post
Here is a layout for the older version of EH Black Finger.
You can find the original FSB thread here.
I've used Pedalgrinder slightly modified schematic on page 3.
Some suggested high gain, some low gain transistors.
Should test them both.
... and the LM13700's version:
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 Tagboard Effects. No KiCad fragment has been drawn for this circuit yet.
Parts list 37 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 14 | ||||
| ×1 | 5K6 | 5.6k | read from the layout by eye | |
| ×3 | 470K | 470k | read from the layout by eye | |
| ×5 | 47K | 47k | read from the layout by eye | |
| ×2 | 1M | 1M | read from the layout by eye | |
| ×1 | 680K | 680k | read from the layout by eye | |
| ×2 | 10K | 10k | read from the layout by eye | |
| ×1 | 4K7 | 4.7k | read from the layout by eye | |
| ×1 | 390K | 390k | read from the layout by eye | |
| ×2 | 220K | 220k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×1 | 1M5 | 1.5M | read from the layout by eye | |
| ×1 | 2M2 | 2.2M | read from the layout by eye | |
| ×1 | 33K | 33k | read from the layout by eye | |
| Capacitors 7 | ||||
| ×5 | 100n | 100n | read from the layout by eye | |
| ×2 | 10n | 10n | read from the layout by eye | |
| ×1 | 1n | 1n | read from the layout by eye | |
| ×2 | 27p | 27p | read from the layout by eye | |
| ×2 | 470n | 470n | read from the layout by eye | |
| ×2 | 100u | 100u | electrolytic; read from the layout by eye | |
| ×3 | 10u | 10u | electrolytic; read from the layout by eye | |
| Diodes 4 | ||||
| D1 | 1N4148 | 1N4148 | 1n4148 or 1n914; read from the layout by eye | |
| D2 | 1N4148 | 1N4148 | 1n4148 or 1n914; read from the layout by eye | |
| D3 | 1N4148 | 1N4148 | 1n4148 or 1n914; read from the layout by eye | |
| D4 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 6 | ||||
| Q1 | BC309 | BC309 | PNP silicon (test BC309, BC859C, 2n5087..); read from the layout by eye | |
| Q2 | BC239 | BC239 | NPN silicon (test BC239, BC849C, 2n5088..); read from the layout by eye | |
| Q3 | BC309 | BC309 | PNP silicon (test BC309, BC859C, 2n5087..); read from the layout by eye | |
| Q4 | BC239 | BC239 | NPN silicon (test BC239, BC849C, 2n5088..); read from the layout by eye | |
| Q5 | BC309 | BC309 | PNP silicon (test BC309, BC859C, 2n5087..); read from the layout by eye | |
| Q6 | BC309 | BC309 | PNP silicon (test BC309, BC859C, 2n5087..); read from the layout by eye | |
| ICs 3 | ||||
| IC2 | LM741 | LM741 | legend: LM741, TL061, TL071..; read from the layout by eye | |
| ×1 | 7660S | 7660S | charge pump, no designator; read from the layout by eye | |
| ×1 | CA3080 | CA3080 | no designator; read from the layout by eye | |
| Potentiometers 3 | ||||
| Sustain | A1M | A1M | Potentiometer | read from the layout by eye |
| Level | A100K | A100k | Potentiometer | read from the layout by eye |
| Tone | C50K | C50k | Potentiometer | read from the layout by eye |