Obtained from an Electronic Engineering of the 90s, these circuits can be applied to almost any operational amplifier. Signal shapes are given next to the diagram.
This voice scrambler is used to obtain effects in the 2.5 to 5 kHz range. The circuit is from...
Found in a 1980s American documentation, this circuit is intended for amplifying 10.7 MHz video...
We found this circuit in an Intersil documentation. Temperature sensors are special components of the time,...