Op Amps are easy to use building blocks for electronic circuits and consist of a number of transistors and fets packed in an IC.
Here some examples of circuits that can be build with Op Amps:
Electronics for Art and Education
Introduction to Electronics // Electronics Explained and applied
Op Amps are easy to use building blocks for electronic circuits and consist of a number of transistors and fets packed in an IC.
Here some examples of circuits that can be build with Op Amps: