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amyelectro2008

Problema etaj final

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Am un etaj final in clasa B de 100W de la un subwoofer de casa, nu are reglaj pt curentul de repaus, cam distorstorsioneaza un pic, nu se incalzeste, finali 2Sa1943/2SC5200 buni, singura problema constatata prin masuratori este ca tensiunile baza/emitor la finali sunt 0,57 volti pe un final, iar pe celalalt cam 0,19 volti...Daca stie cineva sa dea un sfat, este rugat sa o faca...multumesc mult.

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