| 摘要 |
The high voltage terminal of the ultor capacitance of a cathode ray tube is coupled to an electron gun structure. The ultor return terminal which typically comprises an outer conductive coating of the cathode ray tube envelope is coupled to the ground return base pin of the cathode ray tube. The ground termination for electrical components and the chassis is also coupled to the ground return base pin. During arc-over, the cathode ray tube ultor capacitance discharges through the ground return base pin. Arc-over current oscillations flow in the chassis and electrical component circuitry by means of stray capacitive coupling to the ultor return terminal. A resistor is coupled to the chassis and to the ultor return terminal for damping arc-over current oscillation in the chassis and in the component circuitry.
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