Other Op-Amp Construction Challenge

Take a look at the various circuits laid out in the previous section, Other Op-Amp Ideas, and find one that interests you.

Design and build an example circuit that shows an application for the Op-Amp idea, and develop a convincing test to demonstrate its effectiveness.

This challenge is more open-ended than some of the previous ones. It's a chance for you to get experience with the problems and possibilities of designing a circuit for a specific need, without a cookbook solution worked out by someone else. This is the first step to real fluency with electronics.