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Amplificator auto Hellfire 2.55


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Salutare, am primit acest amplificator  ce are urmatoarea problema. La volum mic functioneaza normal cand se da volumul mai mare intra in protectie. Masurand tensiunea pe etajele finale fara semnal , ce sunt cu mosfeturi am tensiunea de +|~ 25v ce se obtine printrun convertor cu ci TL494 si doua mosfeturi. Cand se aplica semnal mai mare tensiunea scade pana la 18v  pe brat si intra in protectie si se opreste. poate sa fie integratul?  O idee va rog

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