Twilight Simulator (CB26055E)

This circuit simulates dusk by slowly dimming an incandescent bulb. It was found in the August 1998 issue of Electronics Now magazine.

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EMP Detector (CB23889E)
Originally intended to detect EMPs produced by tests or atomic blasts, this interesting circuit...
Automatic plant sprinkler (CB20778E)
This circuit triggers a small water pump when the humidity detected by the sensor is reduced in a...
Remote power sensor amplifier (CB7444E)
This circuit was found in Maxim's documentation from the 90's. The configuration uses components...