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bfo metal detector
what is the range of detection for this circuit ? if i need 30 cm range , is it good for that ?
when can the zero rate and does not accuse the presence of metals which can be cause?I did the site http://detectordemetais.r30.com.br/detector-de-metais/circuito-detector-de-metais-caseiro/ Only fit as I approach the soldering iron connected to the network 110v .
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