QUESTIONS AND ANSWERS
ARTHUR R. NILSON
Chief Instructor, Nilson Radio School, New York, N. Y. Lieutenant (Technicist) (Communications) U.S.N.R. (Retired); Senior Member Institute of Radio Engineers
J. L. HORNUNG
Lieutenant A-V (RS) U.S.N.R.; Senior Member Institut" of Radio Engineers; Formerly Radio Instructor, New York University
Seventh Edition Nineteenth Impression
McGRAW-HILL BOOK COMPANY, Inc.
ne"w york and london 1040