The Apparatus Used
21
one of which is connected to the spark-gap; the other is the antenna. These wires are so arranged that they
Fig. 8.—High-power Outfit with Rotating Spark-gap Mounted on Leyden-jar Battery Frame, and Hot-wire Current Meter Mounted on Inductance Frame.——Navy Yard, Washington D. C.
may be connected to any point on the spirally wound wire of the inductance.