Guitar Pedal X - GPX Blog - Horrothia's Triage Discrete All-Transistor JFET Pre-Amplifier is a Beautifully Elegantly Textured Low to Mid Gain Overdrive
AMT Electronics JFET C-Drive Mini Distortion pedal
Guitar Pedal X - GPX Blog - In honour of Howard Alexander Dumble's Legacy - 18 of the best Dumble ODS Style Compact Overdrive Pedals
Georgetown MusicEHX Tortion Jfet Overdrive / Distortion from Electro-Harmonix