1590B · 3 knobs
Fuzz Dog· PixDr
Pixel Drive
Based on the Wampler Plexi-Drive· 9 other boards clone it
- Category
- Overdrive· OD/Dist/Preamp
- Difficulty
- Medium
- Price
- £38.40
- Tags
- od-distortion
From the vendor
Massive Marshall in a Box sound from a pretty small circuit.
This FET-based beast will get you a huge range of Marshall-style tones, from the pleasing break-up of an 18W through to the classic rock crunch of a JTM45.
The board-mounted toggle switch will give you a bass-boost, so even at lower volumes you can create some serious bottom-end punch.
Available with through hole FETs, or save yourself a few quid if you're confident enough to tackle fiddly SMT parts.
The kit is supplied with vertical-mount pots which have round shafts, so you'll need set-screw fitting knobs.
You will need a multimeter to tune this circuit. You *could* do it by ear but it's not recommended.
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 only available with full kits, and will not take a battery. Knobs are not included.
Inspired by: Plexi Drive
Difficulty: Medium
PCB size: 50 x 40mm
Knobs required: 3
Enclosure: 1590B
Power and Signal pads match the Direct Connect 3PDT Daughterboard
Check Specials for powder-coated enclosure availability.
Download 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 30 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 11 | ||||
| R1 | 1M | 1M | ||
| R2 | 1M | 1M | ||
| R3 | 1K | 1k | ||
| R5 | 1K | 1k | ||
| R6 | 1K | 1k | ||
| R8 | 10K | 10k | ||
| R9 | 100K | 100k | ||
| R10 | 1K | 1k | ||
| R12 | 15K | 15k | ||
| R13 | 15K | 15k | ||
| R14 | 10R | 10 | ||
| Capacitors 11 | ||||
| C1 | 100u | 100u | ||
| C2 | 220n | 220n | ||
| C3 | 47p | 47p | ||
| C4 | 2n2 | 2.2n | ||
| C5 | 470p | 470p | ||
| C6 | 220p | 220p | ||
| C7 | 22n | 22n | ||
| C8 | 1u | 1u | ||
| C9 | 2n2 | 2.2n | ||
| C10 | 10n | 10n | ||
| C11 | 47u | 47u | ||
| Diodes 1 | ||||
| D1 | 1N5817 | 1N5817 | ||
| Transistors 3 | ||||
| Q1 | J201/MMBFJ201 | J201 / MMBFJ201 | ||
| Q2 | J201/MMBFJ201 | J201 / MMBFJ201 | ||
| Q3 | J201/MMBFJ201 | J201 / MMBFJ201 | ||
| Potentiometers 3 | ||||
| GAIN | 500KA | A500k | Potentiometer | |
| TONE | 25KA | A25k | Potentiometer | |
| VOL | 100KA | A100k | Potentiometer | |
| Switches 1 | ||||
| SW | SPDT ON-ON | SPDT ON-ON | ||
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