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ITEM# BKAA26
6.95

Operating Features of the Audion

by Edwin H. Armstrong

This essay first appeared in the Journal of the New York Academy of Sciences in 1917, and is now reprinted as a 32-page illustrated pamphlet. Major Armstrong was the inventor of the superheterodyne circuit, FM broadcasting, and dozens of other modern engineering designs. Included is the very first authoritative report on the triode vacuum tube's capabilities.

1993, 1917, 32pp., 6" x 9", saddlestitched.
.14 lbs

CONTENTS Part I: Explanation of the Action of the Audion as an Amplifier and as a Detector of High-Frequency Oscillations; Part II: Some Recent Developments of the Audio Receiver; Reinforcement of Radio Frequency Oscillations by the Audion; Audio Frequency Amplification; The Audion as a Generator and Beat Receiver; Peculiar Features of Oscillation; Audio Frequency Tuning; Cascade Systems; Effects of Atmospheric Disturbances; Summary

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