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Lumina led de birou cu telecomanda


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Am facut mai demult o veioza de atelier cu telecomanda ir folosind circuitu integrat cd4017 iar comanda ledurilor am facuut-o cu un tranzistor bipolar si un mosfet. El functioneaza foarte bine si acuma dupa vreo 4 ani sa zic. Problema lui este ca uneori cand conectez ceva la surs sau fac lipituri cu pistol de lipit din ala radioprogres de 100w cu hansa se mai stinge lumina singura dar nu mereu are momente cand mai face asa aprox de cateva luni. Ce ar putea avea? Pana acu nu facea deloc orice faceam la masa de lucru. 

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