This is a megaphone circuit diagram using a signal sound amplifier from a condenser microphone to a higher signal at a small-sized loudspeaker. There are two circuit diagrams to create. See below Simple LM386 megaphone circuit It composes the importance is a microphone preamplifier (pre mic), use transistor just one enlarge sound signal gives the … Read more

This is Sound effects two tone circuit, which generally abound measure various both of kinds use IC frequency origin oruse the transistor. The sound will that is proportionate big depend on the value of R and C. For this circuit is will building sound of pale long tail or clock ancient sound.The work of the … Read more