This is the traditional voltage follower configuration with the 741 operational amplifier. The circuit is from 1976 documentation and the power supply must be symmetrical from 6 to 15 V.
This circuit is from a 1995 Electronics Now. It generates a 1 kHz sinusoidal signal. See in the...
The circuit shown in the figure causes an LED to light up or a relay to close its contacts when...
This circuit was taken from the 1974 Ferranti transistor manual. It is intended to use a common...