This old two-stage video amplifier uses integrated circuits that are not easily obtainable today. The circuit is for analog video and was found in an American 1980s documentation.
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 a 1966 EEE. What it does is it converts the logic levels of 0 V and +4 V...
This circuit open and close the relay in intervals adjusted by the potentiometers. The capacitors...