Original poster: "Christoph Bohr" <cb-at-luebke-lands.de> Hallo all! Maybe I am late with what I found on the web some mintues ago, or someone else already posted this and I missed it.... However, I "googled" this out: http://www.tesla-coil-dot-org/Magnifier.htm This is explaining and disturbing as well, but definitely worth reading. Best regards. Christoph Bohr