This circuit was proposed by a 1965 Electronic Design. Its purpose is to widen the line transients to make them easier to see on common oscilloscopes.
This LED indicator circuit uses an LM339 comparator. The circuit was found in the January 1995...
This version is one of many that can be found on our website. We found it in Radio Electronics from the...
Found in a 2005 Linear Technology application manual, this circuit provides outputs from a current...