| 摘要 |
The novel spot-knocking method for an electron gun mount assembly having a gun axis in an evacuated CRT comprises interconnecting a heater, a cathode, a control electrode and a screen electrode. Then, providing a magnetic field along the gun axis while applying spot-knocking voltages between an anode and the interconnected gun elements. The magnetic field facilitates the initiation of arcs parallel to the magnetic field and to the gun axis and between the adjacent gun elements, and inhibits the initiation of arcs in directions transverse to the magnetic field and the gun axis.
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