1590B · 2 knobs
From the vendor
Big, beefy FET boost in a tiny footprint. This is Tim Escobedo's Duende-JFET boost. So. Few. Parts!
Plenty of punch available without colouring your tone.
Supposedly the basis of the JHS Mini Bomb© but we couldn't comment on that.
Kit is available with a standard sized 1590B enclosure with battery, or a mini 1590A (36 x 90mm) enclosure with DC power only, though be aware that you'll be wiring in a very confined space.
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, in a 1590B. 1590A will not take a battery. Knobs are not included.
Builds are only available with full kits including enclosure. Please choose appropriate knobs.
Inspired by: Duende
Difficulty: Easy
PCB size: 25 x 22mm
Knobs required: 1
Enclosure: 1590B, 1590A
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 7 rows
Report a wrong parse| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 1 | ||||
| R1 | 100K | 100k | ||
| Capacitors 2 | ||||
| C1 | 100n | 100n | ||
| C2 | 47u | 47u | Electrolytic capacitor | |
| Diodes 1 | ||||
| D1 | 1N4001 | 1N4001 | ||
| Transistors 1 | ||||
| Q1 | J201* | J201 | ||
| Potentiometers 2 | ||||
| BIAS | 25K | 25k | ||
| BOOST | 1MB | B1M | ||