Active CW Audio Low-Pass Filter. Soldering Project KIT

welcome back to dx explorer for one more video in the today's video i'm going to talk about a very simple lcd cw audio filter technically supposed to be a passive audio filter that you place between the output of your receiver and your headphones or a speaker if the receiver has enough power to drive a speaker and i've built that one based on a very simple inductor and capacitor i'm going to show you the schematic in a little bit and i'm going to explain everything but the disadvantage using this passive audio filter between the output of your receiver and your headphones is that it's cutting a lot of the audio that goes to to your ears so um i wanted to try and see if i can manage to transform my external lm386 amplifier that i'm using to power my speaker uh for the receiver and see if i can transform this simple passive audio filter into an active audio filter placing it between the r