Enclosure not stated · 4 knobs
DOD FX100 Integrated Tube Even Harmonic Overdrive
Based on the DOD FX100 Integrated Tube Even Harmonic Overdrive
From the post
...say it fast ten times ;-)
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 35 rows
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Check before you build · 2 values the reader of this layout was not sure of
- The single diode is drawn as D3 at row L, columns 18-20, while the legend lists only D1: 1N5817; entered as D1
- 50pF ceramic at column 2, rows L-M: printed clearly, unusual value
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 11 | ||||
| ×1 | 470Ω | 470 | read from the layout by eye | |
| ×2 | 4.7K | 4.7k | read from the layout by eye | |
| ×2 | 6.8K | 6.8k | read from the layout by eye | |
| ×7 | 10K | 10k | read from the layout by eye | |
| ×1 | 20K | 20k | read from the layout by eye | |
| ×2 | 22K | 22k | read from the layout by eye | |
| ×3 | 47K | 47k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 150K | 150k | read from the layout by eye | |
| ×2 | 220K | 220k | read from the layout by eye | |
| ×5 | 1M | 1M | read from the layout by eye | |
| Capacitors 12 | ||||
| ×1 | 50pF | 50p | read from the layout by eye | |
| ×1 | 120pF | 120p | read from the layout by eye | |
| ×1 | 1.5nF | 1.5n | read from the layout by eye | |
| ×1 | 2.2nF | 2.2n | read from the layout by eye | |
| ×3 | 6.8nF | 6.8n | read from the layout by eye | |
| ×3 | 10nF | 10n | read from the layout by eye | |
| ×1 | 47nF | 47n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×1 | 150nF | 150n | read from the layout by eye | |
| ×5 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| D1 | 1N5817 | 1N5817 | labelled D3 on the board; read from the layout by eye | |
| Transistors 5 | ||||
| Q1 | J201 | J201 | JFET; read from the layout by eye | |
| Q2 | 2N5484 | 2N5484 | JFET; read from the layout by eye | |
| Q3 | 2N5088 | 2N5088 | read from the layout by eye | |
| Q4 | 2N5088 | 2N5088 | read from the layout by eye | |
| Q5 | 2N5088 | 2N5088 | read from the layout by eye | |
| ICs 1 | ||||
| IC1 | NJM4558 | NJM4558 | read from the layout by eye | |
| Potentiometers 4 | ||||
| Output | C100K | C100k | Potentiometer | read from the layout by eye |
| Highs | C100K | C100k | Potentiometer | read from the layout by eye |
| Drive | C100K | C100k | Potentiometer | read from the layout by eye |
| Lows | C100K | C100k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×1 | 50K | 50k | read from the layout by eye | |