Low Pass Filter Circuit for Subwoofer | Homemade Circuit Projects
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. it… | Filters, Pass, Transistors
Low Pass Filter Circuit for Subwoofer | Homemade Circuit Projects
A New Tone Control Concept — or Is It? - tonefiend.com