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amplificator 150W mosfet

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am un amlificator cu 8 tranzistori in final IRFA 450 dupa redersare sunt doua sigurante care ard de fiecare data cind le schimb. Ce poate sa fie ? ceva probleme in final si sa consume pre mult adica final in scurt ,ce ar trebui sa masor si cum ??? poate fiecare tranzistor in parte? poate ma ajutati (alimentarea este simetrica 28 v)

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chinezaria aceea de ampif cat credeai ca te tine?dupa ce ii dai de cap sa fi pregatit si pt alte ''incidente''.ca sa-l faci sa poti avea baza in el trebuie sa schimbi toti condensatorii electrolitici si aproape toti tranzistorii si diodele.e facut cu cele mai penale componente posibile :sparge: .trage si tu de el cat poti sau incearca sa-l mariti.succes!

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multumesc ptr indicatii.nu am facut scurt in nici un fel . a cedat din senin la punerea in functie.Am sa masor t,dar condensatorii electrolitici care sunt buni tot trebuie inlocuiti?chear si cei din redresare?-pentru ca nu vad rostul ,poate sa aiba filtrajul vreun amestec in scurtul produs?! oricum multumesc.

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