Enclosure not stated · 4 knobs
Fulltone Secret FreqVerified
Based on the Fulltone Secret Freq· 3 other boards clone it
- Category
- Distortion
- Build
- Vero· 19×14· 18 cuts, 5 links
- Layout
- Verified · Dirtbox Layouts marks it as built and working
- Tags
- Distortion, Fulltone, Overdrive
From the post
Based on schematic from PedalPCB.
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 27 rows
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Check before you build · 1 value the reader of this layout was not sure of
- D1-D3 '1N916A': printed clearly in the legend, unusual part number
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 11 | ||||
| ×4 | 10K | 10k | read from the layout by eye | |
| ×3 | 1K | 1k | read from the layout by eye | |
| ×2 | 1M | 1M | read from the layout by eye | |
| ×2 | 9.1K | 9.1k | read from the layout by eye | |
| ×1 | 18K | 18k | read from the layout by eye | |
| ×1 | 820Ω | 820 | read from the layout by eye | |
| ×1 | 4.7K | 4.7k | read from the layout by eye | |
| ×1 | 39K | 39k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 82K | 82k | read from the layout by eye | |
| ×1 | 20K | 20k | read from the layout by eye | |
| Capacitors 8 | ||||
| ×2 | 47pF | 47p | read from the layout by eye | |
| ×2 | 10nF | 10n | read from the layout by eye | |
| ×1 | 22nF | 22n | read from the layout by eye | |
| ×1 | 33nF | 33n | read from the layout by eye | |
| ×2 | 47nF | 47n | read from the layout by eye | |
| ×2 | 100nF | 100n | read from the layout by eye | |
| ×1 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×2 | 47uF | 47u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×3 | 1N916A | 1N916A | D1-D3; read from the layout by eye | |
| D4 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 1 | ||||
| Q1 | 2N3904 | 2N3904 | legend: 2N3904, 2N5088 etc.; 2SC1815 in original; read from the layout by eye | |
| ICs 1 | ||||
| IC1 | TL082 | TL082 | read from the layout by eye | |
| Potentiometers 4 | ||||
| Dist | A1M | A1M | Potentiometer | read from the layout by eye |
| Highs | B10K | B10k | Potentiometer | read from the layout by eye |
| Freq | B100K | B100k | Potentiometer | read from the layout by eye |
| Volume | B100K | B100k | Potentiometer | read from the layout by eye |
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