The starter circuit shown in the figure was found in an old European documentation. The circuit makes use of an SCR which is still common and the diac can be of any type.
Found in the 1991 Electronics Experimenter Handbook, this circuit detects voltage variations in...
This well-designed 4-transistor JFET audio oscillator circuit was found in the June 1969 issue of...
This filter is intended for 60 Hz noise suppression in amplifiers. We found it in American...