Enclosure not stated · 1 knob
EHX Little Big Muff
Based on the Electro-Harmonix Little Big Muff· 2 other boards clone it
Schematic
The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.
Parts list 24 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 13 | ||||
| ×1 | 33k | 33k | input; read from the schematic by eye | |
| ×1 | 43k | 43k | Q1 base to ground; read from the schematic by eye | |
| ×3 | 470k | 470k | collector-base feedback, one per gain stage; read from the schematic by eye | |
| ×2 | 8.2k | 8.2k | Q1 collector; stage 3 input; read from the schematic by eye | |
| ×1 | 100 | 100 | Q1 emitter; read from the schematic by eye | |
| ×2 | 10k | 10k | stage 2 input; Q2 collector; read from the schematic by eye | |
| ×4 | 100k | 100k | Q2/Q3 base to ground, tone network, Q4 base to ground; read from the schematic by eye | |
| ×2 | 150 | 150 | Q2/Q3 emitter; read from the schematic by eye | |
| ×2 | 15k | 15k | Q3 collector; Q4 collector; read from the schematic by eye | |
| ×1 | 39k | 39k | tone network; read from the schematic by eye | |
| ×1 | 22k | 22k | tone network; read from the schematic by eye | |
| ×1 | 430k | 430k | Q4 base bias; read from the schematic by eye | |
| ×1 | 6.8k | 6.8k | Q4 emitter; read from the schematic by eye | |
| Capacitors 7 | ||||
| ×1 | 10uF | 10u | input, electrolytic; read from the schematic by eye | |
| ×3 | 560pF | 560p | collector-base, one per gain stage; read from the schematic by eye | |
| ×4 | 0.1uF | 100n | Q1 output, Q2 to Q3 coupling, tone to Q4, Q4 output; read from the schematic by eye | |
| ×2 | 0.1uF | 100n | electrolytic, marked * on drawing: reported to work great at 1.0uF; read from the schematic by eye | |
| ×1 | 0.01uF | 10n | tone network; read from the schematic by eye | |
| ×1 | 0.004uF | 4n | tone network; read from the schematic by eye | |
| ×1 | 470uF | 470u | supply filter; read from the schematic by eye | |
| Diodes 1 | ||||
| ×4 | Diode | DIODE | no part number given; drawing suggests 1N914; read from the schematic by eye | |
| Transistors 1 | ||||
| ×4 | ? | ? | NPN, type unknown; drawing says any high-gain NPN; read from the schematic by eye | |
| Potentiometers 1 | ||||
| Volume | 100k | 100k | Potentiometer | read from the schematic by eye |
| Switches 1 | ||||
| Tone | SPDT | SPDT | tone switch selecting between two filter taps; read from the schematic by eye | |
Other boards based on the Electro-Harmonix Little Big Muff
- Electro Harmonix Little Big Muff - transistor version Dirtbox Layouts
- EHX Little Big Muff - Original version Tagboard Effects