The General Electric WB27X10939 Range Magnetron Assembly generates microwave energy to heat and cook food inside the oven cavity. This electrical component converts supplied electrical power into high-frequency electromagnetic waves, which are directed into the cooking chamber to heat food. It operates as part of the microwave heating system and works with other internal components to... https://www.hnkparts.com/wb27x10939-general-electric-magnetron-assembly/4-WB27X10939.html