This simple circuit is powered by the logic circuit itself. Components are still common, although they were obtained from somewhat old documentation.
This circuit was found in the power semiconductor manual of the 1980s ON Semiconductor. The...
This circuit is from Delco Radio found in a 1968’s documentation. The transistors are of the time...
August 2016 – It can be obtained from Mouser Electronics the new modules Littelfuse for surge...