This 800 Hz sinusoidal oscillator was found in a 1970s American documentation. The transistor supports a modern general-purpose equivalent. The frequency is given by the RC network that can be changed.
This simple voltage doubler provides a continuous voltage at its output that is twice the peak...
This simple 741 circuit was found in the August 1993 Electronics Now magazine. The source must be...
This circuit emits a sound at regular intervals to prevent you from falling asleep, for example. It...