Guitar Pedal X - GPX Blog - Stephen Pettyjohn Explores the outer reaches of Headroom and Compression with his Elegant New Chime-derived Core Edge Circuit
Pettyjohn Electronics ODI Overdrive Pedal - Andertons Music Co.
Pettyjohn Electronics Pedals | Reverb España
Guitar Pedal X - News - Pettyjohn Electronics Delivers Extraordinary Vintage Textures with its ODI Overdrive - in Classic Mods and NOS Diodes Edition