“…Although used initially for the high-voltage testing of domestic and industrial power insulation and switchgear, in recent years they have become a vital requirement in many research areas, particularly those involving particle and plasma physics, as well as high power systems that involve the generation of microwave and X-ray radiation. Despite the original experiments being performed by Nikola Tesla (Lomas, 2000) well over a hundred years ago, with the typical and very spectacular results evident in Figure 1, important new applications still continue to arise in technically active countries worldwide e.g (Peng, Liu, Song, & Su, 2011;Novac, Wang, Smith, & Senior, 2014;Su et al, 2016). Tesla transformers are produced in several different constructional forms and they can be classified in a number of ways depending on the sometimes competing output requirements of extremely high voltage or high average power.…”