Found in an Electronics World of 1966 this circuit can be made with current power transistors. It causes colored lamps to flash to the rhythm of the audio signal applied to the input.
This tunable circuit was found in the May 1994 issue of Electronics Now magazine. The circuit has...
The circuit shown in the figure can act as a home repeater for AM signals from the output of an...
This circuit, based on a 555, was found in a Popular Electronics from the 90s. The circuit has the...