This common dimmer configuration is one of thousands that have appeared in electronics publications around the world. This one with a triac was found in October 1977 Radio Electronics magazine.
We found this circuit in an American publication from 1977. The integrated circuit is the 7400 and the...
With 3 transistors, we found this receiver in a documentation from 1966. The circuit has an output...
This circuit detects when a powered circuit suffers a malfunction, lighting an LED. The supply...