Kismet Stitch - 4-knob Harmonic Percolator

If you're not familiar with the Harmonic Percolator, where have you been? Such a beautiful rare and sought-after box of confusion. Is it OD? Is it distortion? Truth is the Harmonic Percolator has a pretty unique tone of its own. Here we have a 'boutique' take on this delightful circuit, offering a little more tweakability than the stock circuit. This comes in the shape of a 'body' control which thickens things up, and a diode control which allow you to adjust the amount of clipping going on.

Available in two distinct flavours - Germanium, which is very similar to the original HP, or Silicon which offers more hard-edged tones. The second is a little cheaper as it doesn't contain any 'mojo', but it's just as much fun.

The kit is supplied with vertical-mount pots which have round shafts, so you'll need set-screw fitting knobs. There's plenty of space going on in the enclosure, so we've added the option for a top-mounted DC socket if you prefer that to the usual side-mount.

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 enclosure. Please choose appropriate knobs.

Inspired by: Karma Suture

Difficulty: Easy

PCB size: 50 x 33mm

Knobs required: 4

Enclosure: 1590B

Direct-Connect compatible (4-way)

Download the INSTRUCTION PDF