This 3 A adjustable source uses the LM350 integrated circuit, which must have a good heat radiator. The circuit is from 80s documentation and has been explored in other versions on this site.
This circuit was found in an English magazine Radio & Electronics Constructor of February 1977....
I found this circuit in a Popular Electronics from 1992. The circuit shows how we can use two...
March 2017 - Texas Instruments LM5166 Synchronized Buck Converters are available at Mouser for 3V...