A Japanese death ray?
…one (not for free, any way). But there are a few more snippets to be found online. This is from Radar Origins Worldwide: History of Its Evolution in 13 Nations Through World War II (Trafford Publishing, 2009) by Raymond C. Watson Jr, 334-5: The Ku-go (Death Ray) was another matter. An Article on a death-ray device invented by Nikola Tesla had been in The New York Times (July 11, 1934), and was picked up by the Japanese press. In this, Tesla was qu…