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In power supplies, etc., so-called X and Y capacitors are used. These capacitors perform their functions as protection and interference suppression. There is a voltage of about 110-150V between the computer and the central heating battery. The reason for this phenomenon is shown in the video. Self-restoring fuse. What is this part and how does it work: • Self-restoring fuse ... What can be done with a flashing LED: • Very simple homemade products on a flashing ...