Raytheon's used integrated circuit is no longer common today. The circuit was obtained in a documentation from the 80's and must be powered by a symmetrical source.
This circuit activates an incandescent garden, balcony or showcase lamp when it gets dark, turning it...
This circuit is from an old publication of 1972 but can be mounted with BC548 transistors for 12 V...
This circuit is intended for the testing of junction FETs, providing several reading options...