Enclosure not stated
Electro Harmonix Boosters
Based on the Electro-Harmonix Boosters
- Category
- Distortion· Distortion Boost and Overdrive
- Price
- see vendor
- Tags
- Distortion Boost and Overdrive
Schematic
The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.
Parts list 55 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 24 | ||||
| LPB-×1 | 430k | 430k | LPB-1/LPB-2/EGO; read from the schematic by eye | |
| LPB-×1 | 43k | 43k | read from the schematic by eye | |
| LPB-×1 | 10k | 10k | read from the schematic by eye | |
| LPB-×1 | 390 | 390 | read from the schematic by eye | |
| MUFF-×3 | 100k | 100k | Muff Fuzz / Little Muff Pi (early); read from the schematic by eye | |
| MUFF-×1 | 10k | 10k | read from the schematic by eye | |
| MUFF-×1 | 2.7k | 2.7k | read from the schematic by eye | |
| BIRD-×1 | 430k | 430k | Screaming Bird/Tree; read from the schematic by eye | |
| BIRD-×1 | 43k | 43k | read from the schematic by eye | |
| BIRD-×1 | 10k | 10k | read from the schematic by eye | |
| BIRD-×1 | 390 | 390 | read from the schematic by eye | |
| MOLE-×1 | 27k | 27k | Mole / Hog's Foot (old version); read from the schematic by eye | |
| MOLE-×1 | 430k | 430k | read from the schematic by eye | |
| MOLE-×1 | 43k | 43k | read from the schematic by eye | |
| MOLE-×1 | 10k | 10k | read from the schematic by eye | |
| MOLE-×1 | 390 | 390 | read from the schematic by eye | |
| HOG-×2 | 220k | 220k | Hog's Foot (new): input bias; read from the schematic by eye | |
| HOG-×3 | 100k | 100k | filter ladder x2, feedback; read from the schematic by eye | |
| HOG-×1 | 100k | 100k | second stage to output node; read from the schematic by eye | |
| HOG-×2 | 10k | 10k | filter ladder; read from the schematic by eye | |
| HOG-×2 | 1M | 1M | filter ladder; read from the schematic by eye | |
| HOG-×1 | 22k | 22k | read from the schematic by eye | |
| HOG-×1 | 270k | 270k | read from the schematic by eye | |
| HOG-×2 | 27k | 27k | second stage to ground; 2N5087 emitter; read from the schematic by eye | |
| Capacitors 14 | ||||
| LPB-×2 | 0.1uF | 100n | input and output coupling; read from the schematic by eye | |
| MUFF-×2 | 0.1uF | 100n | input and output coupling; read from the schematic by eye | |
| MUFF-×1 | 50uF | 50u | electrolytic supply filter; read from the schematic by eye | |
| BIRD-×2 | 0.002uF | 2n | input and output coupling; read from the schematic by eye | |
| MOLE-×2 | 3.3uF | 3.3u | electrolytic coupling; read from the schematic by eye | |
| MOLE-×2 | 0.1uF | 100n | base to ground; across 10k collector resistor; read from the schematic by eye | |
| HOG-×1 | 0.1uF | 100n | input coupling; read from the schematic by eye | |
| HOG-×1 | 0.022uF | 22n | first stage feedback; read from the schematic by eye | |
| HOG-×1 | 5uF | 5u | electrolytic; read from the schematic by eye | |
| HOG-×2 | 0.22uF | 220n | filter ladder; read from the schematic by eye | |
| HOG-×2 | 0.02uF | 20n | filter ladder; read from the schematic by eye | |
| HOG-×2 | 2200pF | 2.2n | filter ladder; read from the schematic by eye | |
| HOG-×1 | 10uF | 10u | electrolytic; read from the schematic by eye | |
| HOG-×1 | 1uF | 1u | electrolytic output coupling; read from the schematic by eye | |
| Diodes 1 | ||||
| MUFF-×2 | Diode | DIODE | no part number given; clipping diodes to the supply rail; read from the schematic by eye | |
| Transistors 5 | ||||
| LPB-×1 | 2N5133 | 2N5133 | NPN; read from the schematic by eye | |
| MUFF-×2 | 2N5133 | 2N5133 | NPN, direct-coupled pair (part number printed on one); read from the schematic by eye | |
| BIRD-×1 | 2N5133 | 2N5133 | NPN; read from the schematic by eye | |
| MOLE-×1 | 2N5133 | 2N5133 | NPN; read from the schematic by eye | |
| HOG-×1 | 2N5087 | 2N5087 | PNP; read from the schematic by eye | |
| ICs 1 | ||||
| HOG-×2 | ? | ? | op amp, no part number given; two sections drawn, could be one dual op amp; read from the schematic by eye | |
| Potentiometers 5 | ||||
| LPB-×1 | 100k | 100k | Potentiometer | output level; read from the schematic by eye |
| MUFF-×1 | 100k | 100k | Potentiometer | output level; read from the schematic by eye |
| BIRD-×1 | 100k | 100k | Potentiometer | output level; read from the schematic by eye |
| MOLE-×1 | 10k | 10k | Potentiometer | input level; read from the schematic by eye |
| HOG-×1 | 100k | 100k | Potentiometer | output level; read from the schematic by eye |
| Switches 5 | ||||
| LPB-×1 | SPST | SPST | power switch; read from the schematic by eye | |
| MUFF-×1 | SPST | SPST | power switch; read from the schematic by eye | |
| BIRD-×1 | SPST | SPST | power switch; read from the schematic by eye | |
| MOLE-×1 | SPST | SPST | power switch; read from the schematic by eye | |
| HOG-×1 | SPST | SPST | power switch; read from the schematic by eye | |