This TTL delay circuit has long delay times which can be determined by R1 and C1. The base is in common TTL and Maxim's MAX907.
This circuit was found in the Electronics Experimenter Handbook from 1991. The sensor is a diode...
This circuit can be used on audio, video, or data links to receive modulated infrared signals. The gain is...
With this circuit it is possible to obtain a voltage modulated in amplitude with a maximum current of...