We found this circuit in a 1967 Electronic design. However, it can be easily implemented even today as it uses only common diodes.
This circuit activates a garage door by the car headlights car or a lantern. The circuit is from a...
We found this circuit in the March 1992 issue of Radio Electronics magazine. The circuit has a...
This circuit was found in a 1965 Electronics Design. The configuration can be applied to current...