Enclosure not stated · 3 knobs
Electro Harmonix Germanium OverdriveVerified
Based on the Electro-Harmonix Germanium Overdrive· 3 other boards clone it
From the post
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 16 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 5 | ||||
| ×4 | 62K | 62k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 10K | 10k | read from the layout by eye | |
| ×1 | 15K | 15k | read from the layout by eye | |
| Capacitors 3 | ||||
| ×3 | 100pF | 100p | read from the layout by eye | |
| ×5 | 470nF | 470n | read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| D1 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 3 | ||||
| Q1 | NKT275 | NKT275 | or other PNP Ge; read from the layout by eye | |
| Q2 | 2N5087 | 2N5087 | read from the layout by eye | |
| Q3 | 2N5087 | 2N5087 | read from the layout by eye | |
| Inductors 1 | ||||
| ×3 | Ferrite bead | FERRITE BEAD | FB; read from the layout by eye | |
| Potentiometers 3 | ||||
| Volts | B100K | B100k | Potentiometer | read from the layout by eye |
| Gain | B10K | B10k | Potentiometer | read from the layout by eye |
| Bias | C100K | C100k | Potentiometer | read from the layout by eye |
Other boards based on the Electro-Harmonix Germanium Overdrive
- Electro Harmonix Germanium OD Effects Layouts (blog)
- Germanium OD PCBWay: Glory to Ukraine
- EHX Germanium Overdrive Tagboard Effects