Holmes H-X6 Spectrum
A rare and versitale old 3-band eq pedal with High Pass, Band Pass and Resonance controls. Schematic is avaiable at DeadendFx
EQ
Mesa Boogie 5 Band Gyrator Eq
A DIY adaption of a Mesa Boogie 5 band eq found in many Mesa Boogie amps. Original tonestack has inductors but is is changed to op amp gyrators. This design was created by Cameron (thanks!) and layouts is verified by AlexS(thanks again, mate!)
God City Instruments Stockwell Eq
Now verified by Alex, thanks! Updated 19.08.20 – Moved 9v from pin 8 to pin 7 at TL071
Electric Druid Hard Bargain Distortion
“the tin man” had a look at the v5 schematic and spotted some changes since the earlier versions had some issues. Layout updated.