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电铃加装电子接点电路图

作者：时间：2016-11-07 来源：网络

直流电铃加装电子接点电路，取代原来簧片接点，可以避免因簧片接点调整不当和沾有锈污，引起不响故障。

电子接点电路是由两个三极管组成的振荡电路。电路振荡后，向电铃线圈输入频率为100HZ的脉冲电流，使电铃发出响

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关键词： 电铃加装 电子接点

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