Links to two tutorials are provided on this page.

The 741 op-amp tutorial deals with the 741 operational amplifier. This tutorial explains the origin of the 741 and also explains the technical specification as given in a data sheet. Such parameters as Common Mode Rejection Ratio, Slew Rate, Transient Response etc. are explained. Also a number of applications are included.

The 555 timer is a tutorial on the 555 timer integrated circuit. It follows much the same layout as for the 741 tutorial.