Enclosure not stated · 1 knob
Speaker Cranker
Based on the EarthQuaker Devices Speaker Cranker· 6 other boards clone it
From the vendor
The Speaker Cranker is an all discrete dirt enhancement device designed to give your signal some grit and a slight boost without drastically changing the character of your tone. It’s perfect for those that don’t like to fiddle with pesky controls yet want to add a little tube-like breakup or enhance an already over driven amp (or pedal) to give it some extra crunch without over loading the preamp. The single “More” control allows you choose the amount of break up you desire. Just like you would with a tube amp, back it off to thin out the sound and clean it up or crank it up for a fuller sound with a bit of compression. Did we mention it’s an overdrive and not a booster?
Schematic
The schematic image is on the project page. Open it at PCBWay.
Parts list 13 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 6 | ||||
| ×1 | 10k | 10k | read from the schematic by eye | |
| ×1 | 4k7 | 4.7k | LED resistor; read from the schematic by eye | |
| ×1 | 47 | 47 | supply series; read from the schematic by eye | |
| ×1 | 2M2 | 2.2M | read from the schematic by eye | |
| ×1 | 1M | 1M | read from the schematic by eye | |
| ×1 | 330 | 330 | read from the schematic by eye | |
| Capacitors 3 | ||||
| ×2 | 100u | 100u | electrolytic; read from the schematic by eye | |
| ×1 | 68n | 68n | read from the schematic by eye | |
| ×1 | 100n | 100n | read from the schematic by eye | |
| Diodes 2 | ||||
| ×1 | 1N4001 | 1N4001 | read from the schematic by eye | |
| ×3 | 1N60P | 1N60P | clipping: two in series one way, one the other; read from the schematic by eye | |
| Transistors 1 | ||||
| ×1 | 2N5088 | 2N5088 | read from the schematic by eye | |
| Potentiometers 1 | ||||
| Gain | B5k | B5k | Potentiometer | read from the schematic by eye |
Other boards based on the EarthQuaker Devices Speaker Cranker
- Earthquaker Devices Speaker Cranker Dirtbox Layouts
- Earthquaker Devices Speaker Cranker Effects Layouts (blog) · 1590A
- Spanker Five Cats Pedals · 1590A · £3.50
- Cone Cranker Fuzz Dog · 1590B · £21.60
- Crankshaft Distortion PedalPCB · 125B · $8.00
- EarthQuaker Devices Speaker Cranker Tagboard Effects