Coriolis Effects is a small-batch pedal builder run by Devin McNeilly, specializing in handmade guitar effects that focus on faithful reproductions of out-of-production circuits alongside original designs. The operation grew out of a hobby — McNeilly builds around a full-time job — and is known within the boutique pedal community for limited runs rather than mass-market releases.

The catalog leans heavily on vintage-inspired fuzz, overdrive, and modulation circuits. Signature offerings include the Floret Cana Mori Fuzz, the Hail to the King (a homage to the Analog Man King of Tone), and a run of Sekova-branded reproductions covering Big Muff, overdrive, fuzz, and power boost circuits. The shop also carries recreations of hard-to-find designs such as the Systech Harmonic Energizer, Systech Phase Shifter, Lovetone Big Cheese, Lovetone Doppelganger, Lovetone Ring Stinger, the Companion Fuzz FY-2, and the Intersound IVP preamp.

Alongside vintage-clone work, Coriolis Effects produces originals like the Kirkland Bulk Boost, Bucktown Overdrive, Enso Drive, and Transmit 2. Pedals are typically released in small quantities and frequently sell out, with the builder prioritizing a curated project list over taking open custom orders.

Coriolis Effects has 2 products cataloged on Equipboard, including Overdrive Effects Pedals and Multi Effects Pedals.