Enclosure not stated · 5 knobs
Electronic Audio Experiments BeholderVerified
Based on the Electronic Audio Experiments Beholder· 1 other board clones it
From the post
Another request. Here is something quite different; sort of a distressed sounding reverb/fuzz/noisebox. 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 33 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 9 | ||||
| ×7 | 10K | 10k | read from the layout by eye | |
| ×4 | 1K | 1k | read from the layout by eye | |
| ×4 | 1M | 1M | read from the layout by eye | |
| ×3 | 22K | 22k | read from the layout by eye | |
| ×2 | 100K | 100k | read from the layout by eye | |
| ×2 | 4.7K | 4.7k | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| ×1 | 68K | 68k | read from the layout by eye | |
| ×1 | 470Ω | 470 | read from the layout by eye | |
| Capacitors 6 | ||||
| ×6 | 100nF | 100n | read from the layout by eye | |
| ×3 | 10nF | 10n | read from the layout by eye | |
| ×5 | 1uF | 1u | film box; read from the layout by eye | |
| ×1 | 470pF | 470p | read from the layout by eye | |
| ×2 | 100uF | 100u | electrolytic; read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| Diodes 3 | ||||
| D1 | 1N4148 | 1N4148 | read from the layout by eye | |
| D2 | 1N4148 | 1N4148 | read from the layout by eye | |
| D3 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 3 | ||||
| Q1 | PN2222 | PN2222 | legend: PN2222, 2N4401, 2N3904 etc.; read from the layout by eye | |
| Q2 | PN2222 | PN2222 | legend: PN2222, 2N4401, 2N3904 etc.; read from the layout by eye | |
| Q3 | 2N3904 | 2N3904 | 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 | |
| REG | 78L05 | 78L05 | regulator; read from the layout by eye | |
| Potentiometers 5 | ||||
| Fuzz | C1M | C1M | Potentiometer | read from the layout by eye |
| Filter | B50K | B50k | Potentiometer | read from the layout by eye |
| Feedback | A100K | A100k | Potentiometer | read from the layout by eye |
| Dwell | A100K | A100k | Potentiometer | read from the layout by eye |
| Volume | A100K | A100k | Potentiometer | read from the layout by eye |
| Trimmers 2 | ||||
| Drone Trim | 100K | 100k | read from the layout by eye | |
| Dry Mix | 100K | 100k | read from the layout by eye | |
| Switches 1 | ||||
| Drone | SPST momentary | SPST MOMENTARY | footswitch; read from the layout by eye | |
| Other 1 | ||||
| RB | BTDR-2H Medium | BTDR-2H MEDIUM | reverb brick; read from the layout by eye | |
Other boards based on the Electronic Audio Experiments Beholder
- Beholder Electronic Audio Experiments · 1590BBM · $12.00