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Lingfei beauty area (Bible 63833; rhinitis device)
Lingfei beauty area (Bible 63833; rhinitis device)
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机译:凌飞美容区(圣经63833;鼻炎仪)
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摘要
A circuit board formed with a spark gap for protecting a circuit element such as a transistor connected to a picture tube of a television receiver when spark discharge occuring within the picture tube produces a current under a high voltage tending to destory the transistor. The spark gap comprises a pair of metal balls disposed respectively on the confronting tip portions of a pair of discharge electrodes disposed opposite to each other on an insulator substrate so that spark discharge can always occur across these metal balls without occuring across the electrodes.
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