This configuration similar to many of this site was found in 1965 General Electric documentation. Modern equivalent transistors can be used. LEDs can be used.
This circuit is intended to increase the width of a pulse. The circuit is TTL and can be used as a...
This circuit was found in an Electronics World magazine from 1990. The circuit can be mounted...
Found in the book 303 Circuits, this circuit compresses signals from 25 mV to 20 Vpp to...