1590B
From the vendor
Metal wrecking machine in a box. Based on the beloved Integrated Pre circuit, this signature pedal has been tweaked to pumelling perfection, adding extra gain and filtering to your dimed high-gain amp tone. Achieving around 33V of mayhem from your 9V supply, it'll push your amp into unchartered gain territory while clearing up a lot of the mud you can get from taking things so far. NOTE: If you aren't doing extremely high gain chugging metal, don't bother. This is of no use at all to you. The kit is supplied with a vertical-mount pot which has a round shaft, so you'll need a set-screw fitting knob. 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, pot. 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 partial kits, and will not take a battery. Knob is not included. Builds are only available with full kits including enclosure and vertical-mount pots. Please choose appropriate knobs. Inspired by: 33 Difficulty: Medium PCB size: 50 x 43mm Knobs required: 1 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 48 rows
Report a wrong parse| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 21 | ||||
| R1 | 1M | 1M | ||
| R2 | 4K7 | 4.7k | ||
| R3 | 22K | 22k | ||
| R4 | 1M | 1M | ||
| R5 | 100K | 100k | ||
| R6 | 220K | 220k | ||
| R7 | 820R | 820 | ||
| R8 | 1K8 | 1.8k | ||
| R9 | 220R | 220 | ||
| R10 | 3K9 | 3.9k | ||
| R11 | 2K2 | 2.2k | ||
| R12 | 47R | 47 | ||
| R13 | 120R | 120 | ||
| R14 | 20K | 20k | ||
| R15 | 1K | 1k | ||
| R16 | 4K7 | 4.7k | ||
| R17 | 12K | 12k | ||
| R18 | 10K | 10k | ||
| R19 | 100K | 100k | ||
| R20 | 820K | 820k | ||
| R21 | 100K | 100k | ||
| Capacitors 14 | ||||
| C1 | 10u | 10u | elec | |
| C2 | 10u | 10u | elec | |
| C3 | 10u | 10u | elec | |
| C4 | 10u | 10u | elec | |
| C5 | 10u | 10u | elec | |
| C6 | 4u7 | 4.7u | elec | |
| C7 | 47n | 47n | ||
| C8 | 100p | 100p | ||
| C9 | 100n | 100n | ||
| C10 | 47n | 47n | ||
| C11 | 10n | 10n | ||
| C12 | 470n | 470n | ||
| C13 | 1u | 1u | ||
| C14 | 4u7 | 4.7u | elec | |
| Diodes 9 | ||||
| D1 | 1N4148 | 1N4148 | ||
| D2 | 1N4148 | 1N4148 | ||
| D4 | 1N4001 | 1N4001 | ||
| D5 | 1N4001 | 1N4001 | ||
| D6 | 1N4001 | 1N4001 | ||
| D7 | 1N4001 | 1N4001 | ||
| D8 | 1N4001 | 1N4001 | ||
| D9 | 1N4001 | 1N4001 | ||
| D3 | 1N5817 | 1N5817 | ||
| Transistors 2 | ||||
| Q1 | BC550C | BC550C | ||
| Q2 | BC550C | BC550C | ||
| ICs 2 | ||||
| IC1 | LM741 | LM741 | ||
| IC2 | 7660SEPA* | 7660SEPA | ||