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atenuare pentru drivere
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mustang
Membru distinctiv
Membru distinctiv


Joined: 25 Jan 2010
Posts: 378
Location: Galati

PostPosted: Fri Feb 05, 2010 10:36 pm    Post subject: Reply with quote

salut.Vreau sa imi fac si eu un atenuator...dar am cautat rezistente de 4 respectiv 8 ohmi...insa fara succes prea mare.Am hotarat sa le cumplez (serie/paralele) astfel incat sa imi dea valoarea pe care o caut.Pentru inceput R1 se poate face din 3 rezistente de 5W 12ohm ,punse in paralel si rezulta ca R1 o sa fie de 4 ohmi 15W.
Apoi R2 o sa fie format din 8 rezistente de 1 ohmi 9w puse in serie;)).E cam aberant faptul ca o sa stai cu ditamai manunchiul de rezistente in boxa.Wink).Dar R2 trebuie sa fie de putere mare.Deci R2 o sa rezulte ca fiind de 8 ohmi 72W.Smile.
O sa mai caut si alte valori ale rezistentelor ,poate o sa fie mai putine.Dar 72 W e suficient .

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