| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetron with low cost of which, inductors for noise prevention filter are enabled to easily solve the problem of the damage of an insulation film of a coil winding caused by burning. SOLUTION: For the magnetron having a magnetron body to which, inductors for forming a noise prevention filter are connected, the inductors directly connected to cathode electrodes are formed by using sparsely wound coils which are not covered by insulation film.
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