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.
ON Semiconductor NTMJS1D5N04C 40V Industrial MOSFET Available from Mouser Electronics, these ON...
We found this circuit in a publication by General Electric in the 1980s. The transistors and the...
This xenon lamp circuit, also a stroboscope, was found in the May 1996 issue of Electronics Now...