This paper is the result of extensive experiments, investigating the effect on typical distribution transformers when operated overexcited as much as 117% of their rated voltage.
The performance of certain high-gain amplifiers, such
as those used in null detectors, can be greatly improved
by using a nonlinear element in a feedback loop. With the
addition of nonlinear feedback, it is possible to obtain
an amplifier that can handle a large dynamic range of input
signals without...