Quote:
Originally Posted by Fred
Hi esteban,
Nice coil!
The fact that you need a capacitor is strange, i could mean you are detecting a viariating signal, not DC one.
regards,
Fred.
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The tune capacitor is for to mantain the coil in resonace point, not free. The 10 nF capacitor is used for to leave input in high resistence. When you move pistol you convert DC signal in AC. In any case the "phenomenon" causes by metal buried for long time "emits" a train of signal, because also stay quiet the pistol (not in movement) signal pases through blocking capacitor. Don't know why!
