1590A · 1 knob
Earthquaker Devices Speaker CrankerVerified
Based on the EarthQuaker Devices Speaker Cranker· 6 other boards clone it
From the post
Here's a simple one that should fit nicely in a 1590a. EQD's take on the Electra Distortion circuit. Instead of having a pot coming off the end of the circuit, the volume is controlled by a pot coming off the emitter of the 2N3904. It's really more of a gain control than volume and if you wanted to, you could add a master volume control coming off the output. Who doesn't love more knobs, right?
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 Effects Layouts (blog). No KiCad fragment has been drawn for this circuit yet.
Parts list 11 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 4 | ||||
| ×1 | 330Ω | 330 | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | 2.2M | 2.2M | read from the layout by eye | |
| ×1 | 10K | 10k | read from the layout by eye | |
| Capacitors 3 | ||||
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×1 | 68nF | 68n | read from the layout by eye | |
| ×2 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×3 | 1N60 | 1N60 | read from the layout by eye | |
| ×1 | 1N4001 | 1N4001 | printed 4001; read from the layout by eye | |
| Transistors 1 | ||||
| Q1 | 2N3904 | 2N3904 | read from the layout by eye | |
| Potentiometers 1 | ||||
| More | B5K | B5k | Potentiometer | printed 5K Lin, board mounted; read from the layout by eye |
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