Found in an Electronic Design from the 90s, this circuit makes use of integrated regulators of the time. These components must be provided with heat sinks.
This circuit published in the November 1964 Radio Electronics magazine powers a light bulb but can...
This circuit uses an old National Semiconductor operational amplifier, but it can be implemented with...
This circuit is from the 1990 Motorola Linear Databook. The circuit can be applied to other...