IS IT SAFE TO OPERATE MICROWAVE WITHOUT GUIDEGOVER
 

It's safe as far as humans are concerned but as another reply said,
protects the waveguide and magnetron from contamination.

--- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/
Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
+Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
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