The Tone Geek is a Connecticut-based boutique pedal operation run by Ryan Colgan, who designs, builds, and documents guitar effects with a particular focus on recreating rare, out-of-production, and expensive circuits. The project grew out of Colgan's blog dissecting the rigs of players like John Mayer, and it now spans a shop that sells both fully built pedals and DIY PCBs, faceplates, and parts for the builder community.

The product line leans heavily on faithful clones and tributes of sought-after circuits. Offerings include the Valve Screamer TS10 (an Ibanez TS10 Tube Screamer recreation hand-built in Connecticut), the BFK and Mini Klone Klon Centaur-style PCBs, the ATS808 based on the Vemuram TSV808 topology, a Marshall Bluesbreaker-style 125B pedal, the Black Triangle Overdrive, and the Pew Pew Preamp. Colgan also sells retrofit boards for effects such as the Electro-Harmonix Aqua Puss delay, along with amplifier rectifier and bias boards.

With a background in electrical engineering, Colgan pairs the shop with educational PCB design content on YouTube and detailed blog write-ups on artist rigs and circuit analysis. The brand's niche is the intersection of DIY pedal building, gear archaeology, and "unobtainium" tone pursuit for players who can't justify paying vintage or boutique market prices.

The Tone Geek has 3 products cataloged on Equipboard, including Overdrive Effects Pedals and Boost Effects Pedals.