This simple continuity tester consists of an oscillator found in the 1983 Electronics Experimenter Special projects magazine. The circuit is powered by a single battery.
This circuit was found in a Radio Electronics issue from May 1989. Please note that it may not...
The circuit in the figure is very interesting because it simulates an SCR triggered by light. When...
The circuit shown is a suggestion by National Semiconductor in its 1994 Linear Applications...