1590B · 1 knobs
From the vendor
The little box of magic you probably didn't know you needed.
It has a similar topology as a Super Hard-On, but offers a bit more without the annoying crackle.
Simple, single control. First quarter turn and you're in buffer mode, giving a little sparkle to your chain. Next half a turn is clean boost which is nicely transparent. The last quarter turn is going to kick your tube amp in the ass, giving sweet overdrive.
Our recommendation - run two!
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: Prestige
Difficulty: Easy
PCB size: 28 x 20mm
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 12 rows
Report a wrong parse| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 6 | ||||
| R1 | 1M | 1M | ||
| R2 | 1M | 1M | ||
| R3 | 1M | 1M | ||
| R4 | 1K | 1k | ||
| R5 | 100K | 100k | ||
| R6 | 100R | 100 | ||
| Capacitors 2 | ||||
| C2 | 10u | 10u | Electrolytic capacitor | |
| C3 | 100u | 100u | Electrolytic capacitor | |
| Diodes 2 | ||||
| D1 | 1N5817 | 1N5817 | ||
| D2 | 1N4742A** | 1N4742A | ||
| Transistors 1 | ||||
| Q1 | BS170 | BS170 | ||
| Potentiometers 1 | ||||
| VOL | C1M | C1M | ||