1590B · 1 knob
Gradient
From the vendor
Boost and 2-way Tone Control
Gradient is a simple yet unique boost circuit which uses a single gain control to provide two different flavors of boost. Turn it one way for a gain and mid boost, the other for a thick or bright boost. The PCB is designed to be configured in a number of ways, from a basic mod to place in front of another dirt box to a full featured drive in and of itself.
Photos below show Gradient built as stock and another built with "all the mods."
Sale is for PCB only. You must source the components and build the pedal yourself. To make foot switch wiring easier, we also suggest you buy the 3pdt utility switch.
Gradient Build Guide
Share your work, get tips, ask questions and help troubleshoot at our Facebook Group. Don't forget to agree to the group rules if you wish to join. GCI DIY PCB builders group
NOT FOR COMMERCIAL USE
Schematic
The schematic is in the vendor's build document. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 20 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 10 | ||||
| R1 | 2.2M | 2.2M | 1/4 Watt Resistor | |
| R2 | 10k | 10k | 1/4 Watt Resistor | |
| R3 | 1M | 1M | 1/4 Watt Resistor | |
| R4 | 10k | 10k | 1/4 Watt Resistor | |
| R5 | 10k | 10k | 1/4 Watt Resistor | |
| R6 | 100k | 100k | 1/4 Watt Resistor | |
| R7 | 10k | 10k | 1/4 Watt Resistor | |
| R8 | 220R | 220 | 1/4 Watt Resistor | |
| R9 | 47k | 47k | 1/4 Watt Resistor | |
| R10 | 220R | 220 | 1/4 Watt Resistor | |
| Capacitors 7 | ||||
| C1 | 22n | 22n | Film Cap | |
| C2 | 1uF | 1u | Film Cap | |
| C3 | 0.33u | 330n | Film Cap | |
| C4 | 47u | 47u | Electrolytic Cap 100u | |
| C5 | 4.7u | 4.7u | Electrolytic Cap | |
| C6 | 470p | 470p | Ceramic Cap | |
| C8 | 100u | 100u | Electrolytic Cap | |
| Diodes 1 | ||||
| D1 | 1n5818 | 1N5818 | Schottky Diode 1n4001, | |
| ICs 1 | ||||
| IC1 | LM741P | LM741P | OP AMP TL071, | |
| Potentiometers 1 | ||||
| Color | W20k | W20k | 16mm Pot B25k | |