New library books

Electronic amplifier circuits, J. M. Pettit, M. M. McWhorter. McGraw-Hill Book Co., Inc., 330 W. 42 St., New York 36, N. Y., 1961; 6 × 9¼ inches, bound; $9.75. The fundamental principles underlying amplifier design are reviewed at length, with a parallel treatment of tubes and transistors as amplifying elements given. The first part of the book is a review of active elements, vacuum tubes and transistors, and their use in simple situations. The second part deals with the design of “fast” low-pass amplifiers from the pole-zero viewpoint, and various analogies to gain functions. The final section, on amplifier measurements, is included to clear up some of the problems common to amplifier design and to the necessary testing of the resulting amplifier.