Found in a September 1992 Radio Electronics magazine article, this circuit generates a pulse as shown in the graph below the diagram. The timings can be changed by swapping C3 and C7.
This circuit emits a sound when a magnetic field, of a magnet, for example, approaches the sensor....
This circuit uses a large surface diode to detect radiation (alpha and beta particles, in addition to...
This oscillator makes use of one of the inverters of an integrated circuit 7404. With circuits of the...