The amplistat — A magnetic amplifier

Amplifications of 10 to the 12th power have been obtained in one stage of the amplistat in the laboratories of the General Electric Company. This amplifier also has advantages of long life, no starting delay, no moving parts, and is very sturdy and quiet in operation. A description of the operation of the amplistat, diagrams of the circuits, and its advantages and limitations are given in this article.