Practical wireless telegraphy; a complete text book for students of radio communication (1917)
Bucher, Elmer Eustice, 1885- · New York, Wireless Press, Inc · leaf 182
Fig. 197b—Supersensitive Brown Amplification Relay. RECEIVING CIRCUITS, DETECTORS, TUNING APPARATUS. 171 … Fig. 197c—Details Brown Relay. Like the first .type described, several of these relays may be connected in cascade forprogressive amplification of the incoming radio signals. 153. Atmospheric Electricity.—When the aerial wire of a radio station issuspended above the earth, it not only absorbs a…
Telegraph, Wireless
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