Proto Pedal Example: Analog Equalizer Project - SparkFun Learn
Schematics – electric-safari
Passive 3 band EQ
Amazon.com: Stax Bass EQ Pedal 5 Band Equalizer Pedals For Bass Guitar With 5 Band Graphic Mini Size True Bypass : Musical Instruments
Proto Pedal Example: Analog Equalizer Project - SparkFun Learn
Simple 3-Band EQ schematic?
Parametric Audio Equalizer
Parametric eq noises scares me
Parametric Equalizer Schematic - 3 Band Parametric Eq Schematic Transparent PNG - 801x456 - Free Download on NicePNG
6-Band EQ (Potentiometer Version) - PedalPCB.com
5-band EQ with gain - SabroTone
Boss GE-7 EQ repair
Multi Active Band-Pass Filter Equalizer (Guitar Pedal) | diyAudio
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