File:Testatika-Line.png

Summary
The Testatika is an electromagnetic generator based on the 1899 Pidgeon electrostatic machine which includes an inductance circuit, a capacitance circuit, and a thermionic rectification valve. Allegedly a perpetual motion machine, the Testatika resembles in some respects a Wimshurst machine. It was built by German engineer, Paul Suisse Bauman, and promoted by a Swiss community, the Methernithans. The Testatika is also known as the Swiss M-L converter or Thesta-Distatica.

Electrical circuit as explained in Potter's "Methernitha Back-Engineered" article.