| 摘要 |
In a magnetron of the type wherein a gasket member in the form of a fine metal wire net is disposed between a cup shaped sealing member on the output side, and a magnetic yoke providing a magnetic flux passage for permanent magnets contained in the magnetic yoke, a portion of the yoke is provided with an annular projection for snugly receiving the gasket member and a flat edge integral with the projection is provided between the annular projection and the cup shaped sealing member for supporting the gasket member.
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