This photoelectric circuit was found in a 70’s Ferranti's documentation. The circuit uses an operational one from that time. Modern equivalent components can be used in a new project.
This circuit is from an old Electroics Now. Its purpose is to protect the fax and modem lines of...
This simple circuit imitates the sound of a machine gun and, when using a larger capacitor, a...
This non-inverting comparator was found in old American documentation. Formulas next to the...