Davehax: The construction of microphones may seem quite complicated to you as the technology in use is not accessible. But with the following steps you can easily make microphones in your home, using pencil lead and a matchbox.
You will need a few other things like one battery 9 volts, some basic wires, alligator clips, and a speaker or headphones.
The construction presented by YouTuber Davehax is outrageously simple.
Just remove the lead from your pencils very carefully, scrape one flat side on each, place them in the matchbox as shown in the video below, and you're ready to wire.
The effect may not look as nice as the microphones of a studio microphone, but it works surprisingly well!
Watch the video