Guitar/Bass Graphic 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
Mr. EQ
Rock Bottom EQ
Active Tilt Equalizer - PARASIT STUDIO
Passive 3 band EQ
BEHRINGER BEQ700 Bass Equalizer rev B Schematics – Electronic Service Manuals
Parametric Audio Equalizer
Electro Harmonix Graphic Equalizer - Circuit Scheme
Boss GE-7 EQ repair
Guitar FX Layouts: 2, 4 & 8 Band Gyrator EQ
Experimentalists Anonymous DIY Archives
Guitar FX Layouts: 2, 4 & 8 Band Gyrator 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
5-band EQ with gain - SabroTone
20 Band Graphic Equalizer - Circuit Scheme
Simple, Easy Parametric and Graphic EQ's, Plus Peaks and Notches
Simulating the Boss GE-7 Graphic Equalizer in LTSpice
6-Band EQ (Potentiometer Version) - PedalPCB.com
Amazon.com: Stax Bass EQ Pedal 5 Band Equalizer Pedals For Bass Guitar With 5 Band Graphic Mini Size True Bypass : Musical Instruments
