1590B · 3 knobs
From the vendor
Another pedal based on a Tube Screamer? Indeed. One of very, very many. This one bucks the trend a little and winds things back to be more of a clean boost with some grit at the top of the gain control, and it does it very well. Three clipping settings give you some subtle differences in compression, making this a very versatile boost that won't over-colour your tone. The kit is supplied with vertical-mount pots which have round shafts, so you'll need set-screw fitting knobs. If you want the PCB without parts there's a link for that at the bottom of the page. Partial kit: PCB, all board-mounted components, pots. Full kit: As above, plus footswitch and appropriate daughterboard/components for your selected bypass type (see Downloads section for details of those), jack sockets, DC socket, battery snap, hook-up wire, LED. Enclosure (pre-drilled) is available as an option with full kits, and can take a battery if desired with footswitch positioned 22mm higher, closer to the controls. Knobs are not included. Builds are only available with full kits including enclosure and vertical-mount pots. Please choose appropriate knobs. Inspired by: Sex Drive Difficulty: Easy PCB size: 50 x 28mm Knobs required: 3 Enclosure: 1590B Direct Connect compatible (4-way) Download the INSTRUCTION PDF
Schematic
The schematic is in the vendor's build document, page 2. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 24 rows
Report a wrong parse| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 9 | ||||
| R1 | 22K | 22k | ||
| R2 | 22K | 22k | ||
| R3 | 47K | 47k | ||
| R4 | 1M | 1M | ||
| R5 | 39K | 39k | ||
| R6 | 4K7 | 4.7k | ||
| R7 | 1K | 1k | ||
| R8 | 1K | 1k | ||
| R9 | 330R | 330 | ||
| Capacitors 5 | ||||
| C1 | 1u | 1u | ||
| C2 | 100n | 100n | ||
| C3 | 330n | 330n | ||
| C4 | 330n | 330n | ||
| C5 | 22u | 22u | elec | |
| Diodes 6 | ||||
| D1 | 1N4148 | 1N4148 | ||
| D2 | 1N4148 | 1N4148 | ||
| D3 | 1N4148 | 1N4148 | ||
| D4 | Green | GREEN | ||
| D5 | Green | GREEN | ||
| D6 | 1N4001 | 1N4001 | ||
| ICs 1 | ||||
| IC1 | 4558 | 4558 | ||
| Potentiometers 3 | ||||
| VOL | 100KB | B100k | Potentiometer | |
| GAIN | 250KB | B250k | Potentiometer | |
| TONE | 25KB | B25k | Potentiometer | |