Proto Pedal Example: Analog Equalizer Project - SparkFun Learn
Guitar Pedal X - GPX Blog - A Brief Hobbyist Primer on Key Tone Stack Types and Circuit EQ Configurations - in collaboration with Master-Builder Adrian 'Thorpy' Thorpe
Index of /diy/Schematics/Tone Control and EQs
Mr. EQ
Stereo Vacuum Tube Studio EQ based on 1955 Circuit – Preservation Sound
Index of /diy/Schematics/Tone Control and EQs
Simple guitar 5 band EQ using the BA3812L chip nexp.pt
Rock Bottom EQ
Guitar Pedal X - GPX Blog - A Brief Hobbyist Primer on Key Tone Stack Types and Circuit EQ Configurations - in collaboration with Master-Builder Adrian 'Thorpy' Thorpe
Simple, Easy Parametric and Graphic EQ's, Plus Peaks and Notches