This 8 W amplifier with germanium transistors was found in a Japanese documentation from 1967. The circuit is of the commercial type and is powered by two 12 V batteries or by a symmetrical source.
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...