Lenk, John D. Handbook of oscilloscopes theory and application John D. Lenk. - Englewood Cliffs, N.J. Prentice-Hall [1968] - xi, 212 p. illus. - Prentice-Hall series in electronic technology . 921004 LCCN: 68020858 Subjects--Topical Terms: Cathode ray oscilloscope. Dewey Class. No.: 621.37/47