1590B · 1 knob
From the vendor
Ain't nothing wrong with a good old Tube Screamer, but sometimes more is.... more. This little beauty serves up that 808 goodness with the addition of a boosted clean blend, so you can keep as much of your uncompressed tone in the mix as you like. If you want to get tweaky you can opt for the additional clipping toggle switch. Go for two-way for two different sets of diodes, or really push the boat out with a three-way. The centre position takes the clipping diodes out altogether for a super loud 'boost' setting that'll really push your amp. 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 and vertical-mount pots. Please choose appropriate knobs. Inspired by: Sparkle Drive Difficulty: Medium PCB size: 50 x 42mm 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 37 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 18 | ||||
| R1 | 1M | 1M | ||
| R2 | 1K | 1k | ||
| R3 | 470K | 470k | ||
| R4 | 10K | 10k | ||
| R5 | 4K7 | 4.7k | ||
| R6 | 100K | 100k | ||
| R7 | 10K | 10k | ||
| R8 | 3K3 | 3.3k | ||
| R9 | 1K | 1k | ||
| R10 | 150R | 150 | ||
| R11 | 470R | 470 | ||
| R12 | 47K | 47k | ||
| R13 | 1K | 1k | ||
| R14 | 10K | 10k | ||
| R15 | 3K3 | 3.3k | ||
| R16 | 10K | 10k | ||
| R17 | 10K | 10k | ||
| R18 | 100K | 100k | ||
| Capacitors 10 | ||||
| C1 | 100n | 100n | ||
| C2 | 220n | 220n | ||
| C3 | 47n | 47n | ||
| C4 | 47p | 47p | ||
| C5 | 220n | 220n | ||
| C6 | 100n | 100n | ||
| C7 | 100n | 100n | ||
| C8 | 2u2 | 2.2u | elec | |
| C9 | 47u | 47u | elec | |
| C10 | 100u | 100u | elec | |
| Diodes 5 | ||||
| D1 | 3mm | 3MM | ||
| D2 | 3mm | 3MM | ||
| D3 | 1N4148 | 1N4148 | ||
| D4 | 1N4148 | 1N4148 | ||
| D5 | 1N5817 | 1N5817 | ||
| Transistors 1 | ||||
| Q1 | MPSA18 | MPSA18 | ||
| ICs 2 | ||||
| IC1 | 4558 | 4558 | ||
| IC2 | 5532 | 5532 | ||
| Potentiometers 1 | ||||
| VOL | 100KB | B100k | Potentiometer | |
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