Signaling", U.S. Patent No. 725,605, April 14, 1903 "Apparatus for Transmitting Electrical Energy", January 18, 1902, , December 1, 1914 Others' patents J. S. Stone, , "Apparatus for amplifying electromagnetic signal-waves". (Filed January 23, 1901; Issued December 2, 1902) A. Nickle, , "Antenna". (Filed May 25, 1934; Issued August 2, 1938) William W. Brown, , "Antenna structure". (Filed May 25, 1934; Issued October 27, 1936). Robert B. Dome, , "Antenna". (Filed May 25, 1934; Issued December 7, 1937) Armstrong, E. H., , "Wireless receiving system". 1914. Armstrong, E. H., , "Method of receiving high-frequency oscillation". 1922. Armstrong, E. H., , "Signalling system". 1922. Gerhard Freiherr Du Prel, , "High-frequency circuit". (Filed August 11, 1925; Issued July 3, 1928) Leydorf, G. F., , "Antenna near field coupling system". 1966. Van Voorhies, , "Toroidal helical antenna" Gene Koonce, , "Multifrequency electro-magnetic field generator". (Filed October 29, 2004; Issued August 23, 2005) See also Faraday cage , an inventor and showman who worked with high-voltage electricity , invented in 1893 by Paul Marie Oudin Van de Graaff generator References Further reading Operation and other information Armagnat, H., & Kenyon, O. A. (1908). The theory, design and construction of induction coils. New York: McGraw. Haller, G. F., & Cunningham, E. T. (1910). The Tesla high frequency coil, its construction and uses. New York: D. Van Nostrand Co. Iannini, R. E. (2003). Electronic gadgets for the evil genius: 21 build-it-yourself projects. TAB electronics. New York: McGraw-Hill. Pages 137–202. Corum, Kenneth L. and James F. "Tesla Coils and the Failure of Lumped-Element Circuit Theory" Nicholson, Paul, "Tesla Secondary Simulation Project" (Current state of the art in rigorously describing Tesla coil secondary behavior through theoretical analysis, simulation and testing of results in practice) Vujovic, Ljubo, "Tesla Coil". Tesla Memorial Society of New York. Hickman, Bert, "Tesla Coil Information Center" Cooper, John. F., "Magnifying Transmitter early-type circuit diagram; Later-type circuit diagram". Tesla-Coil.com Electrical World "The Development of High Frequency Currents for Practical Application"., The Electrical World, Vol 32, No. 8. "Boundless Space: A Bus Bar". The Electrical World, Vol 32, No. 19. Other publications Corum, J. F., and K. L. Corum, "RF Coils, Helical Resonators and Voltage Magnification by Coherent Spatial Modes". IEEE, 2001. de Queiroz, Antonio Carlos M., "Synthesis of Multiple Resonance Networks". Universidade Federal do Rio de Janeiro, Brazil. EE/COPE. Haller, George Francis, and Elmer Tiling Cunningham, "The Tesla high frequency coil, its construction and uses".