Tucker, D. G. Circuits with periodically-varying parameters : including modulators and parametric amplifiers / D.G. Tucker. - Princeton ; N.J. : Van Nostrand, c1964. - xiv, 175 p. : illus. ; 22 cm. - Trends and developments in engineering series . Include bibliography and index. Subjects--Topical Terms: Electronic circuits.Parametric amplifiers.Modulation (Electronics) Dewey Class. No.: 621.3815 / TUC 1964