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.

If your station uses 2 GHz ENG frequencies A08 or A09, in the 2450 to 2483.5 MHz range, you are probably aware of the potential for microwave oven interference. Researchers at the University of ...