Simple 12 db low pass filter. This filter use 2 BC547 NPN transistor and a stereo 100k pot for the cutoff, instead of the pot… | Filters, Synthesizer diy, Pass
Audio EQ: What Is A Low-Pass Filter & How Do LPFs Work? – My New Microphone
Audio EQ: What Is A Low-Pass Filter & How Do LPFs Work? – My New Microphone