This circuit uses an 18 MHz crystal to generate 36 MHz signals. We found it in an 80's documentation. The circuit has an input for frequency modulation.
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...