New "Cold" Radio Tube.- Animals have been killed, the temperature of the human body reached several degrees and 6000 has been cooked by the cold heat generated in a new high power, short-wave tube developed in the laboratories of the General Electric Company in Schenectady, N.Y.-The tube which causes these strange phenomena is a harmless looking vacuum tube, 5 inches in diameter and about two feet long, set in a wooden cage surrounded by a network of wires, condensers and electric meters. Photo shows the "cold" radio tube.- by Wide World Photos, Inc.