Let me tell you the truth, this circuit is made of double-sided copper clad laminate, and the output is only a little bit. When made of single-sided copper clad laminate, the output is more than two volts. It does not matter how much the output is. As long as it can be compared in the end, there is no adjustment for l1 and c10. Meaning, within the range of 100pf, or even greater, its sensitivity has not changed much. It can react to the sky or some ground, but this is only a problem of geographic magnetic field and has nothing to do with metal. Don’t say you succeeded. In fact, no one has ever seen you, nor can you know that you succeeded or failed. You always like to hear others say that you succeeded, and you hate others to say no. This is your psychological problem. You found water at a depth of 60 meters in your country. The basic knowledge tells you that as long as it is not a mountain, there is basically water in the ground 60 meters deep. You attribute this function to the oc
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