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mariuscristian

acord 201 stereo -zgomot de fond

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buna ziuaa

 

am achizitiona recet un pic-up Acord 201 stereo si l-am transformat intr-un amplificator (adica am renuntat la partea mecanica deoarece era praf) insa am constat ca are zgomot de fond mare. am schimbat tot ce era condensator atat de la alimentare cat si de la amplificator, am schimbat si trafo care "bazaia" nefiresc, am verificat si tranzistori ..... in fine mi-a pus capac nu reusesc sa scad nivelul zgomotului.......

fac pfecizaea ca toae tranzistoarele din amplificator sunt originale.

ajutati-ma cu sugestii varog frumos

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multumesc!

inradevar zgomotul provenea din eajul final adica tranzistoarele finale au carcteristicile masurabile dubios de declasate. le-am ilocuit cu seria BDXX, ...... pentru ureche "merge"....

multumesc inca o data

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