
I
n this experiment, you will build a different
type of AM receiver, using just an LM386
audio amplifier chip in a creative way. The chip
wasn’t designed for this purpose but provides
further proof that the world around us is full
of radio waves.
A man named Martyn McKinney discovered the
previously unknown capability of an LM386 when
he was repairing a conventional radio. He found
that the chip could amplify ...