The Whirling Dervish is a DIY guitar effects pedal kit from Jeds Peds, a maker of pedal kits. The maker itself is playful about what it is, asking "is it a phaser / filter / noise maker?!" in its own listing. In practice it is a filter-family effect, sitting alongside pedals like the Jeds Peds Auto Wah and other filter pedals, and it is aimed at players who want to build their own gear rather than buy a finished pedal off the shelf1.
What it does
Jeds Peds describes the Whirling Dervish as sitting somewhere between a phaser, a filter and a noise maker, which puts it in the same broad family as auto-wah and envelope filter designs rather than the more familiar overdrive or distortion categories. The maker says it is "best on the bass although it does work for guitar too", so bass players are the primary audience, and it sits naturally among bass pedals1.
One practical point the maker flags: a hot input signal causes the circuit to make some weird noises, which Jeds Peds says is easily solved by turning the input signal down. Players running high-output instruments or hot buffers into it should keep that in mind1.
Kit options
The Whirling Dervish is sold in several levels, so builders can choose how much of the work they take on. The circuit fits inside one of Jeds Peds' JP1590BB enclosures, and the kit includes the maker's own DIY-friendly PCB design1.
| Option | What you get |
|---|---|
| PCB Only | Just the plain PCB |
| PCB and Vactrols | PCB plus vactrols |
| PCB & Components | PCB with components |
| PCB & Components and off board parts | PCB, components and off-board parts |
| Full Kit | Everything needed to build it |
| Full Kit & Drilling | Full kit with enclosure drilling |
| Pre Built Kit | Built for you, £65.00 GBP1 |
This is a kit product first. If you do not solder, the pre-built option is the only version that arrives assembled, and it is listed at £65.00 GBP1.
Videos
Jeds Peds
Sources (1)
- Whirling Dervish, Jeds Peds (jedspeds.co.uk)
