This circuit was found in the June 1996 issue of Electronics Now. Integrated circuits must be equipped with heat sinks, and the maximum current is 1 A.
This circuit makes use of an operational amplifier from the 80's. The circuit can be implemented with...
When the power is cut off, this circuit keeps the flashlight on for a while, allowing it to be...
Using the CK722 this directional photometer was published in Radio Electronics magazine in July...