Practical wireless telegraphy; a complete text book for students of radio communication (1917)
Bucher, Elmer Eustice, 1885- · New York, Wireless Press, Inc · leaf 173
is tunedto resonance with the primary circuit andthe incoming wave. The condenser C-1 isset at very low values of capacity, andthe capacity of C-3 varied, also C-4, untilmaximum response in the head telephonecircuit is obtained. Like ordinary vacuumvalve circuits, the potential of thebattery B-2… … PHONES J Fig. 186—Cascade Connection of Vacuum Valve withOne Lighting Battery. RECEIVING CIRCUITS, DETECTORS, TUNING APPARATUS. 163 144. The Vacuum Valve Amplifier.—The incoming signals made audibleby the simple vacuum valve circuit shown in Fig. 179, may be amplified consider-ably by connecting…
Telegraph, Wireless
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