It may seem like a holdout against the solid-state world, but the vacuum-tube magnetron is still at the heart of every consumer microwave oven and many commercial ones used for cooking or drying.

An oven that heats food using microwave radiation. The first microwave oven was demonstrated by Westinghouse at the 1933 World's Fair in Chicago. Its 10-kilowatt shortwave radio transmitter cooked ...

A study published in the Environmental Science and Technology journal in 2023 revealed that plastic utensils used in ...

The film discusses the function and operation of microwave oscillators in radar systems, focusing on the importance of oscillators like the magnetron and reflex velocity modulated tubes. It explains ...

KANSAS CITY, Mo. (KCTV) - October 8, 1945. Raytheon Manufacturing Company files a patent for the microwave oven. It was invented by an employee who discovered a candy bar had melted in his pocket due ...