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ELFORUM - Forumul Electronistilor
Vittorino

Amplituner Electronica

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Salutare la toata lumea!

Ma poate ajuta cineva cu schema si cu denumirea amplitunerului din imaginea alaturata?

Ma intereseaza mai ales schema amplificatorului audio care la mine e scrum...

 

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Multumesc pentru intelegere.

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Modulul amplificator arata ca in fotografia de mai jos.

Daca nu se poate schema... macar sa-mi spuna cineva ce tranzistori foloseste ca finali si prefinali.

Tandemul BC547 / BD139 si complementarii nu dau rezultate  :84

 

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Multumesc.

Edited by Vittorino

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Finalii , din cate'mi amintesc erau 2N3055 dar daca optezi pt. un KD 607S, este mai bine.
Dar poate fi si mai bine cu un KU 607 (210V, 10A curent de colector, 70W si 18 Mhz frecventa de taiere).
Daca esti si mai pretentios.... 2N6338A, 2N6339A, BUV 19, BUV 20, BUR 20, BUR 50, sau BUX 10 A, dar costa si nu stiu daca merita la 2X40 W.
Nu uita de imperecherea finalilor (fiecare tre` sa aiba un factor de amplificare cat mai apropiat) pentru reusita maxima. Si regleaza curentul de mers in gol al amplif. (15-20 mA).

Edited by leoncris

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