The purpose of the strobe circuit in this sensor amplifier is to reduce consumption. The circuit is from old documentation (1970s), but the idea can be used in modern applications.
This circuit is for analog TV video signals and was found in the March 1988 issue of Radio...
To make a single LED flash in time with your amplifier's music, we have the circuit given below. The...
Found in documentation from the 1970s, this reducing regulator uses integrated circuits and...