Enclosure not stated · 4 knobs
Electronic Audio Experiments Steiner VCF
Based on the Electronic Audio Experiments Steiner VCF
- Category
- EQ / Filter
- Build
- Vero· 27×21· 43 cuts, 19 links
- Layout
- Unverified · no build reported at Dirtbox Layouts yet
- Tags
- Electronic Audio Experiments, Filter
From the post
Description is avaiable HERE. Schematic is avaiable HERE.
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 28 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 9 | ||||
| ×7 | 1K | 1k | read from the layout by eye | |
| ×5 | 47K | 47k | read from the layout by eye | |
| ×3 | 10K | 10k | read from the layout by eye | |
| ×3 | 1M | 1M | read from the layout by eye | |
| ×3 | 100Ω | 100 | read from the layout by eye | |
| ×2 | 2.2K | 2.2k | read from the layout by eye | |
| ×1 | 3.3K | 3.3k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| Capacitors 6 | ||||
| ×4 | 100pF | 100p | read from the layout by eye | |
| ×3 | 2.2nF | 2.2n | read from the layout by eye | |
| ×3 | 100nF | 100n | read from the layout by eye | |
| ×2 | 1uF | 1u | film box, not electrolytic; read from the layout by eye | |
| ×1 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×4 | 47uF | 47u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×10 | 1N4148 | 1N4148 | D1-D10; read from the layout by eye | |
| D11 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 2 | ||||
| Q1 | 2N3904 | 2N3904 | Q1 & Q2 matched; read from the layout by eye | |
| Q2 | 2N3904 | 2N3904 | Q1 & Q2 matched; read from the layout by eye | |
| ICs 3 | ||||
| IC1 | TL072 | TL072 | read from the layout by eye | |
| IC2 | TL072 | TL072 | read from the layout by eye | |
| IC3 | LT1054 | LT1054 | read from the layout by eye | |
| Potentiometers 4 | ||||
| Freq | B50K | B50k | Potentiometer | read from the layout by eye |
| Drive | A50K | A50k | Potentiometer | read from the layout by eye |
| Resonance | A50K | A50k | Potentiometer | read from the layout by eye |
| Volume | A50K | A50k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| Bias | 2.5K | 2.5k | read from the layout by eye | |
| Switches 1 | ||||
| Switch | 3P4T rotary | 3P4T ROTARY | read from the layout by eye | |