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Jhony21

Amplificator Nec A430E SS

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la ambele capete de la becuri vin 629mVcc.

 Seteaza multimetrul pe masurare tensiune alternativa (simbol VAC sau V~) si masoara inca odata.

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Se pare c? nu avem nici o tensiune ?n c.a., nici c.c., am m?surat ?i cu aparat analogic de la scala de 50v, 10, 2.5v c.a. & c.c.; iar cu multimetrul c?nd ?mi apar acele mici tensiuni c?nd nimic, iar dac? puneam doar un tester/sond? (nu ?tiu cum se spune corect !?) ar?ta 4.8vca.

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Chiar dac? nu este schema de la sta?ia ta seam?n? cu ea. C?nd ai facut scurt ai ars tranzistorii din stabilizator.

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Cine ?mi poate spune ce tranzistori trebuiesc schimba?i ? Sau de unde pot face rost de schem? ?

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