An improved magnetic servo amplifier
Carroll W. Lufcy, A. E. Schmid, P. W. Barnhart · Transactions of the American Institute of Electrical Engineers Part I Communication and Electronics · 1952
OF THE potential applications of magnetic amplifiers, one of the most promising is in the field of automatic feedback controls. In such systems, reliability of operation is frequently as important in design considerations as the operational characteristics themselves. For this reason, the replacement of relatively short-lived vacuum tube amplifiers with long-lived, rugged, and reliable magnetic amplifiers is an extremely desirable thing provided the minimum operational characteristics can be met using the magnetic amplifier.