I was asked to develop a workshop for a Spotify conference taking place at the Metropolitan Pavillion on October 25th. The conference had about 75 attendees, so the workshop needed to be something easy for beginners, but also something that could be taught from a projector at the front of the room.
I decided on an audio amplifier using the LM386 chip, and hired Ezer Longinus as my assistant for the day.
The build instructions are available as a PDF, and can be downloaded at the following link. This circuit exists in the public domain, and we claim no ownership over the design of this schematic.