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ELFORUM - Forumul electronistilor

amplificator simplu


marian_valcea

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Eu l-am facut astahttp://sound.westhost.com/project3a.htm mai demult,fara cablaj,am legat componentele in aer si a mers din prima si suna bine.Poti sa pui si alti finali,dar nu cred ca gasesti prin televizoare vechi.Iti mai trebuie un transformator de 2x30V ,in jur de 100w si ceva condensatori de filtraj marisori la 50v,nici de astea nu prea gasesti in televizoare

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Ia amplifu facut de baga. E simplu de executat, iar piesele se pot inlocui cu orice atata timp cat Uce maxim se respecta Ic max, puteri disipate si evident tipul tranzistorilor npn/pnp.Spune ce recuperezi si vedem ce putem rezolva.Din pacate din TV-uri nu prea gasesti cine stie ce, dar poate ai noroc si gasesti fix un integrat pt audio.

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Daca TV-urile sunt destul de vechi vezi ca poti recupera din ele tranz 2n3055 cu care poti sa faci multe amplif:

-20W in clasa A http://www.elecfree.com/electronic/the- ... ifier-20w/

-80W/4ohm http://www.electronics-lab.com/projects ... index.html

-30w http://www.audiofanatic.it/Schemi/Tipo/ ... 2N3055.jpg

Tot prin TV poti gasi si un integrat audio :TDA2030 care e cel mai bine de realizat de un incepator. Vezi PDF!!

Bafta!!!

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