The circuit shown was found in the 1994 National Semiconductor's Linear Application Handbook. The op amp admits equivalents and the power supply must be symmetrical.
This circuit can be used as a control shield for microcontrollers of all types. The supply is made...
The load used in this experimental circuit is a small incandescent lamp but it can be replaced by...
Found in an American documentation from 1992, this circuit for medium and short waves uses a CI of...