Practical wireless telegraphy; a complete text book for students of radio communication (1917)
Bucher, Elmer Eustice, 1885- · New York, Wireless Press, Inc · leaf 150
icroamperes (or 3.5 nficroamperes) is the current ~ l« % i 14 1 1 .nl? 1 S / a 10 < j f?« 1 u J ^ / / 4 / 4 / ? y ^ ^ ^ K^ * r Fig. 157- 12 3 4 VOLT& -Characteristic Curve of Carborundum Rectifier. RECEIVING CIRCUITS, DETECTORS, TUNING APPARATUS. 139 which produces audible sound in the… … BALL JOIHT Fig. 157a.—Curves Showing the Fluctuations of the Local Battery Current flowingthrough the Carborundum Rectifier during the Reception of Signals. pressed upon the crystal is greater than the subtracted voltage and that the final effect ofthis is an increase of current through the head…
Telegraph, Wireless
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