Paynter,Robert. Introductory electronic devices and circuits : conventional flow version / Robert T.Paynter - 4th ed. - Upper Saddle River, New Jersey : Prentice Hall, c1997. - p.cm. ISBN: 0132626500 Subjects--Topical Terms: Electeric filters, active. Electric circuits. Dewey Class. No.: 621.3815 / PAY 1997