This circuit, which can be used as a shield, was found in American documentation from the 1970s. This configuration appears elsewhere in this section from other sources.
This circuit was found in an Elektor from the 90s. The circuit is critical, requiring a very...
This simple night light circuit for incandescent lamps was found in documentation from the 90s....
This circuit was found in a 1967 US documentation. The circuit applies to modern general purpose...