Electronic filter design handbook : LC, active, and digital filters / Arthur B. Williams, Fred J. Taylor. Williams, Arthur Bernard, 1940- Taylor, Fred J., 1940- Electric filters Design and construction Handbooks, manuals, etc. TK7872.F5 W55 1988 621.3815324 19 WIE Includes bibliographies and index. New York : McGraw-Hill, c1988. c1988. 1988 Text 1 v. (various pagings) : eng