1590B · 3 knobs
From the vendor
If you're looking for that magic 'transparent' oomph for your chain, this circuit is worth a look. Low-medium gain drive, perfect for pushing a clean or slightly cranked amp. Simple Bass and Treble EQ let you tweak it into your tone as much as required. Boost your strumming into break-up or push your leads screaming into next door's attic. 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 will not take a battery. Knobs are not included. Builds are only available with full kits including enclosures. Please choose appropriate knobs. Inspired by: Westwood Difficulty: Medium PCB size: 50 x 37mm Knobs required: 4 Enclosure: 1590B Direct Connect compatible (4 way) Download the INSTRUCTION PDF
Schematic
The schematic is in the vendor's build document, page 3. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 43 rows
Report a wrong parse| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 18 | ||||
| R1 | 1M | 1M | ||
| R2 | 1k | 1k | ||
| R3 | 470k | 470k | ||
| R4 | 4k7 | 4.7k | ||
| R5 | 4k7 | 4.7k | ||
| R6 | 1k | 1k | ||
| R7 | 150k | 150k | ||
| R8 | 1M | 1M | ||
| R9 | 150k | 150k | ||
| R10 | 6k2 | 6.2k | ||
| R11 | 6k2 | 6.2k | ||
| R12 | 33k | 33k | ||
| R13 | 6k2 | 6.2k | ||
| R14 | 6k2 | 6.2k | ||
| R15 | 33k | 33k | ||
| R16 | 1k | 1k | ||
| R17 | 47k | 47k | ||
| R18 | 47k | 47k | ||
| Capacitors 14 | ||||
| C1 | 100p | 100p | ||
| C2 | 100n | 100n | ||
| C3 | 100p | 100p | ||
| C4 | 220n | 220n | ||
| C5 | 100p | 100p | ||
| C6 | 100n | 100n | ||
| C7 | 1u | 1u | ||
| C8 | 4n7 | 4.7n | ||
| C9 | 4n7 | 4.7n | ||
| C10 | 100n | 100n | ||
| C11 | 1u | 1u | elec | |
| C12 | 1u | 1u | elec | |
| C13 | 10u | 10u | elec | |
| C14 | 100u | 100u | elec | |
| Diodes 5 | ||||
| D1 | 1N4148 | 1N4148 | ||
| D2 | 1N4148 | 1N4148 | ||
| D3 | 1N4148 | 1N4148 | ||
| D4 | 1N4148 | 1N4148 | ||
| D5 | 1N4001 | 1N4001 | ||
| Transistors 2 | ||||
| Q1 | 2N5089 | 2N5089 | ||
| Q2 | 2N5089 | 2N5089 | ||
| ICs 1 | ||||
| IC1 | OPA2134 | OPA2134 | ||
| Potentiometers 3 | ||||
| BASS | 100KB | B100k | Potentiometer | |
| DRIVE | 1MA | A1M | Potentiometer | |
| VOL | 100KA | A100k | Potentiometer | |