This circuit is intended to increase the width of a pulse. The circuit is TTL and can be used as a shield. We found it in an 80's Electronic Engineering.
This circuit allows you to use a calculator as a timer by directly activating a sum key with...
Found in American documentation from the 90s, this circuit has a timing system for activating the...
Found in an old American documentation this FM modulator makes use of a varactor diode. The...