This circuit is used to turn on the headlights when it gets dark. The circuit is from an Electronics Now magazine from October 1998. The power transistor must be equipped with a heatsink.
This circuit was found in the December 1992 issue of Radio Electronics magazine. The current is a...
This trigger uses two switching transistors that can still be found with some ease. The circuit is from...
This filter is inserted between the interfering device and the interfering device. The coils are...