http://www.japanradiomuseum.jp/sorge.htmlゾルゲ事件で使われた無線機 Radio Communication System Used by Richard Sorge Group 1933-41 Summary Richard Sorge , a spy who was sent to Japan by Soviet Union from 1933. He organized own spy group. He obtained information about Japan. Short wave transmitter/receiver was used when they communicated with controller ,or when they sent an intelligence report. Max Clausen who was radio specialist built up radio sets
