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ALEKS

Amplificator cu EL34

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Am gasit, intamplator aceasta schema cu EL34; m-am decis s-o construiesc intrucat am soclurile si tuburile aferente. Ceea ce nu am, este un E88CC, dar pot "imprumuta" de la amplificatorul pentru casti.

 

http://tinypic.com/53pvkg

 

Intrucat nu este nici o indicatie pe site-ul de unde am luat schema, as vrea o parere... Rezistorul de 560R, ce putere poate disipa? Sa-l aleg de 0.5W? Am observat la majoritatea amplificatoarelor cu EL34, rezistorul din catod fiind de 3-10W.

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amplificatorul este in clasa A deci.......rezistenta trebuie la 8-10w pt a nu se incalzi si schimba valoarea.o singura trioda in fata nu ajunge sa deschida tubul bine la semnale mici,deci nu vei avea dinamica.puterea va fi de 5-8w functie de tensiunea de alimentare.iti recomand alt preamp in fata.pt. puterea maxima el34 are nevoie de 5-8v la intrare.contact la

[email protected] iti spun mai multe

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