Significance of the magnetron

One could say that the cavity magnetron evolved from the inventiveness of John Randall and Henry Boot, and became a working reality through the resources and experience of the GEC Laboratories at Wembley, assisted by critical information supplied by the SFR Laboratories of Paris. It could also be said that the emergence of the cavity magnetron in 1940 as an efficient generator of microwaves allowed, from that time onwards, an unrestricted growth in microwave radar technology to take place.