This circuit was found in the May 1959 Radio Electronics magazine. Its purpose is to provide bias voltages for circuits under test. The circuit is isolated from the power grid.
With this circuit it is possible to monitor the charge and discharge of a battery. The circuit is...
This high pass filter was found in the February 1996 Electronics Now magazine. The circuit...
This automatic nickel-cadmium or NiCad battery charger was found in European documentation from...