Nikola Tesla Books
174 HIGH FREQUENCY APPARATUS sible route. This is highly desirable, as an appreciable loss would be sustained in a long transmission line. The equipment recently described is of sufficient power to cultivate a plot of ground embracing 5,000 square feet, and, in the case under the writer's observation, the plot measured 50 feet in width by 100 feet in length. The ground wires, three in number, were run the entire length of the plot and spaced ten feet apart. Crossing these wires at ten-foot intervals were ten bridging wires arranged as shown in the illustration and soldered at each joint. In all cases the wire was of No. 16 bare copper. At the end of the plot nearest the transformer house, the ground wires were brought together in a rat-tail and connected with the ground lead of the apparatus. The overhead network presents a more difficult problem. In the experimental plot ten wires spaced five feet apart ran the entire length of the plot and were supported at either end upon high-tension insulators held by posts which were of such a height that they suspended the wires seven feet above ground. At twenty-foot intervals on either side of the plot, additional posts were located and Unit N'1 30 plates Unit N3 so plates To transformer Unit N° 2 30 plates Unit N°4 30 plates To transformer One plate of condenser 810' glass coated both sides with tinfoil to within i'of edge. Dip edges in melted beeswax to a depth of all around. Method of Connecting Condenser Fig. 23. Showing how four units of condensers are connected
