The cut-off frequency of the circuit shown in the figure is 750 Hz, with the components used. The circuit applies to almost any operational amplifier and the power supply must be symmetrical.
This circuit can be installed inside a toy space gun to produce a “Phaser” effect. The circuit is from...
This circuit was found in the January 1995 Electronics Now magazine. The source must be dual, and...
In the diagram, from a documentation from the 90s, we have the way to use an SCR in a full wave...