DIY SYNTH VCF Part 1: Analog Filtering Basics

Support the channel: In this series, I’m taking a detailed look at how to build an analog VCF from scratch. To keep it as beginner-friendly as possible, I’m explaining what all the components do in detail. This first part deals with passive first- and second order high & low pass filters. If you want to follow along, here’s a bill of materials: 1x 1M mono potentiometer 1x 1M stereo potentiometer 1x 47k resistor 2x 10 nF capacitor 2x jack socket Chapters: 00:00 Intro 00:42 What’s a filter? 03:50 Oscillation basics 06:16 Low pass analysis 10:57 Low pass build 12:49 Moving the cutoff point 14:33 High pass analysis 17:44 High pass build 18:05 Higher order filters 19:20 Second order low pass build 20:40 Outro