This circuit was found in the February 1994 issue of Electronics Now magazine. The circuit uses 6 and 12 V regulators that must be equipped with heat sinks. The current is 1A (max).
Found in American documentation from the 1980s, this circuit is a basic signal rejection filter...
Found in a 2005 Linear Technology application manual, this circuit provides 12-bit resolution output...
We found this circuit in an old Argentine publication from 1973. It makes use of a large LDR (2.5...