15 Watt Amplifier

  
A 15 watt amplifier made using discrete components. Sergio designed this circuit for his Electronics Level II course.
15 Watt Amplifier - schematic

This amplifier uses a dual 20 Volt power supply and delivers 15 watts RMS into an 8 ohm load. Q1 operates in common emitter, the input signal being passed to the bias chain consisting of Q8, Q9, D6, D13 and D14. Q8 and Q9 provide a constant current throug



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