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RADIO OPERAT

QUESTIONS AND ANSWERS

BY

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

AND

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

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