This two-tone decoder has a bandwidth of 24%. The circuit is from a 1994 Electronics Now. The components without the value determine the recognized frequency.
Found in an American publication in 1967, this circuit generates pulses for the triggering of a LASER of...
This very simple brake light circuit is activated with the brake lights, just connecting it by...
This 1967 Electronics World circuit is suitable for frequencies up to 1 MHz. The setting applies...