This circuit has a maximum frequency of 10 kHz and a linearity better than 0.01%. The circuit is from an 80's documentation making use of integrated of the time.
The purpose of this circuit is to trigger a lighting system when it becomes dark. The circuit...
This circuit uses a triac to detect the level of a reservoir, and a sensitive SCR connected to the...
This circuit is from an American 1967 documentation and can be implemented with modern equivalent...