31. This magnetron was designed for pulsed operation at a wavelength of 16 cm. 32. The H2S radar used the newly developed cavity magnetron . 33. Inconsistently, in Liverpool, the magnetron was given a full Army escort. 34. A microwave magnetron has a typical life of approximately 2, 000 hours. 35. Research on cavity magnetrons was conducted by another institute at Kharkov in Ukraine. 36. One difference with the German magnetron was the source of the magnetic field. 37. All magnetrons contain a small amount of thorium mixed with tungsten in their filament. 38. Contracts were awarded to Raytheon and other companies for mass production of the magnetron . 39. The cavity magnetron was developed in the Department of Physics by Sir James Sayers. 40. Fast H-minus ions are generated at the cathodes as in the magnetron .
