Extreme Low pF capacitance isolation transformator for mains, Homemade, two Toroids, 3D print

I have done many of them, just two normal Toroids, just two normal E cores, rewound E core, and rewound toroids, one of my previous best is here: http://webx.dk/oz2cpu/230V-trafo-isol... STL files : https://www.thingiverse.com/thing:531... LTSPICE simulation file is also in the thingiverse folder Transformators : TRT300212 (300VA 2 x 12V) talema see at 16:30 the result is 7pF !! isolation is amazing ideas for the 3D printed holder, and two toroids I got from this one :    • eXtReMe iSoLaTiOn ( Low Leakage Power in P...   The follow up video 1 :    • FOLLOW UP 1 : Extreme Low pF isolation tra...   The follow up video 2 :    • FOLLOW UP 2 : Extreme Low pF isolation tra...   EEVBLOG link https://www.eevblog.com/forum/project... #extreameisolation #transformator #homebrew