In fact, it is a night light system that automatically turns on the outside lights when it gets dark and turns them off at dawn. The circuit only applies to incandescent lamps.
This small regulated power supply was found in a 1963 General Electric documentation. The special...
This circuit suppresses the hiss or thermal noise that occurs in the amplifiers in the absence of a...
I found this article by my friend A. Fanzeres in a Uruguayan magazine Corriente Alterna in July...