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amplificatorul pa300 din revista elektor


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am realizat amplificatorul singura modificare care am facuto e ca in loc de tranzistorii mj15003 si 15004 am pus mj 15023 si 15022 problema care o am e ca daca ii dau putere mare pe un dif de 4 ohmi imi scoate un pocanit in difuzor daca o conectez pe un dif de 8 ohmi merge fara nici o problema si singura treaba care e ca tensiunea in baza a tranzistoriilor e de 0,75 v e minimu ce am putut reglasi normal dupa cum stiti trebuia sa fie de 0,6v in fine sper sa ma ajutati

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La 0.7v nu se incalzeste prea tare?Eu am avut unul asemanator si la 0.6 se incalzea radiatoruin 10 secunde, consuma 150w in gol 8 finali (2sa1943 -2sc5200) a trebuit sa cobor la 0.54 , cat despre pocnit ,poate sa fie de la difuzor , loveste bobina ceva ,poate ajunge la cursa maxima.

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