| 摘要 |
PROBLEM TO BE SOLVED: To provide a cathode body structure for electron tube capable of improving the rapid mobility.SOLUTION: A cathode body structure for electron tube includes a cathode for emitting electrons, a heater for heating the cathode, a heater support member having holes for fixing the heater, and formed of an insulator, a reflection cylinder for housing the heater and heater support member, and a fixing member for fixing the heater support member to the reflection cylinder. The hole has protrusions protruding toward the heater.SELECTED DRAWING: Figure 4 |
