Peter Lindemann's amazing book The Free Energy Secrets of Cold Electricity (2000) explains how Edwin Gray produced "cold electricity" and how that relates to Nikola Tesla's discovery of "Radiant Energy" over a century ago. All of the images that appear as slides in the video are reproduced in the book, as well as complete reprints of Edwin Gray's three US patents, and three of Nikola Tesla's US Patents, which related to the subject. This is an important study manual for serious researchers. Ed Gray's EMA motor produced 40 times more power than he took from his batteries. The secret is in the power supply and this book tells how it works! 156 pages. A must read for everyone.

Peter.A.Lindemann-Free.Energy.Secrets.of.Cold.Electricity.(2000).pdf 6 clicks

Also be sure to see his video presentation:
Peter.Lindemann-Free.Energy.Secrets.of.Cold.Electricity.(2000).XviD.avi 7 clicks

Please share this book with others, add links on other forums as I don't know many of them.