AUDIODiWHY : Korg MS20 Filter--the Why in AudioDIWHY.....
Eddy Bergman.com: Synthesizer Build part-12: THE KORG MS20 FILTER.
SSM2044 LP Filter designs – Electric Druid
Further With Filters
DIRT Filter DIY Kit - Eurorack Version
Stripboard CGS30 Bandpass Filter - ua726
CGS30 - Bandpass Filter | Cat Girl Synth - Modular Addict Synth-DIY
DIRT Filter DIY Kit - 9V Version
CGS49 - Twin Wasp CMOS Filter PCB | Cat Girl Synth - Modular Addict Synth- DIY
Synth DIY – Electric Druid
DIY CD4069 state variable filter for modular synth - DIY STUFF - Look Mum No Computer Thingies
Analog Synthesizer Filter using one opamp | Elektor Magazine
Eddy Bergman.com: Synthesizer Build part-23: DIGISOUND 80.6 LOWPASS FILTER.
Eddy Bergman.com: Synthesizer Build part-7: THE MOOG LADDER FILTER.
STUFF - LOOK MUM NO COMPUTER
Eddy Bergman.com: Synthesizer Build part-26: STEINER-PARKER VCF (Yusynth Design).
CGS bandpass filter - Synth DIY Wiki
Cheap and easy VCF : r/synthesizers
Synth Schematics --::Vacuumtube Filter::--
Synth DIY: a White Noise generator (part 2 of 2) | synthnerd
Music From Outer Space - Your Synth-DIY Headquarters
STUFF - LOOK MUM NO COMPUTER
Simple Variable High Pass Filter – Improvements : r/synthdiy
