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.
In this circuit found in a Texas Instruments 2016 documentation we have an adjustment for the...
This circuit is ideal for creating a source that allows the use of automotive power devices on a...
This circuit is from an English publication of 1982. The bipolar transistor can be a BC548 and the...