Can be used as a shield, this old American documentation circuit offers digitally selected attenuation values from 1 to 0.0001. The component used is uncommon today.
This circuit controls loads powered by the power grid, remembering that it is a half wave...
This circuit was found in an old Electronic Design. It makes use of sidacs and operational not very...
In the figure we have the way to compensate an operational amplifier. The circuit is valid for...