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.
The integrated circuit used in this project is not common today, but it can be implemented with more...
Found in an American publication from 1969, this circuit can be adapted to be used as a shield....
This current meter with many scales was found in a 80s American documentation. The operational amplifier...