It is a common belief by many people that the resonant-cavity magnetron was invented in
February 1940 by Randall and Boot from Birmingham University. In reality, this is not the full …

The history of the magnetron is surveyed, starting with its inception in the United States in
1921 as a diode of academic interest. Further development is traced through the intensive …

Secrets will always be a factor in the political life of any society, and it could be argued that
none enjoy secrets, particularly Official Secrets, quite so much as the English. Inventions …

This invention relates to a magnetron, and more particularly to a magnetron in which there is
provided an anode structure having a plurality of arms adjacent the cathode and in which …

This invention relates to electron discharge devices and particularly to those devices termed
magnetrons in which high frequency oscillations are produced by the curvilinear orbital …

1. My invention relates to electron discharge de vices and more particularly to Such devices
adapted for the generation and amplification of ultra high frequency electric waves. One …

This invention relates to magnetron devices and particularly to magnetrons for the delivery of
large amounts of high frequency power.. An object of the invention is to provide im proved …

This invention relates to magnetrons and par ticularly to Such devices in the ultra high fre
Cuency or So-called micro-Wave range Which, though not definitely defined, may be …

Many ideas important to microwave tubes, including the interaction of electrons with waves,
occurred very early. An orderly understanding came much later. The RF diode equation …

My invention relates to electron discharge devices and associated circuits useful at ultra
high frequencies and more particularly to mag netrons and output leads to be used …