We found this circuit in a 1966 documentation. The circuit is intended for a door opening system by the headlight of a car. The sensor is a photo-FET, an uncommon component today.
January 21, 2016 - Mouser Electronics, Inc. is now shipping the highly anticipated Arduino 101from ...
As in the previous circuit (CB4052E), the relationship of values between the feedback and input...
Found in a National Semiconductor manual from the 90's, this circuit uses components of the time,...