Found in documentation from the 1980s, this circuit uses components from that time. The circuit is used in process control. The power supply is double.
Found in an Electronic World, this circuit is designed to control solenoids up to 5 A. The circuit...
The IC used in this project is not common these days, but if you have one you can build a high...
Found in a 303 Circuits from the 90's this circuit can use the lowest current range of a common...