https://dev.to/brickactive6/wh....y-built-in-microwave 
  https://zenwriting.net/hillsli....ce6/integrated-combi 
  How is a Microwave Built? Microwaves have elevated the convenience of home to a new level. They are designed to fit inside wall cabinets or over kitchen islands. They are constructed of a variety of materials. The cavity magnetron tube that emits microwaves was first invented in 1940 at Birmingham University in England. Percy Spencer discovered that this device could heat food after h
 
		 
		 
		