This circuit, which can be found elsewhere on this site, detects positive pulses of a signal. The circuit was suggested in Texas Instruments documentation from the 1980s.
This circuit can be used with common transistors, from general purpose to medium power. The...
This configuration can be found in almost all LM117 manufacturer's manuals. This circuit,...
This circuit was published in Popular Electronics from the 90's. The components are common, as...