Published:2011/6/26 21:58:00 Author:Ecco | Keyword: Class A , discrete component , amplifier | From:SeekIC
This amplifier circuit uses the dual 20V power supply voltage to provide 15W power without distortion at the 8 ohm load. Q1 operates in the common emitter, and the input signal can provide constant current bias through the bias tube, which is including Q8, Q9, D6, D13 and D14. Q8 and Q9, and the product phase is minimized by the separation darlington tubes (Q2, q4) and (Q7, q11). The two transistors uses Transitors, specifically the types of 2N3055 and MJ2955. R16 uses the series of 4.7K, 680 Ohms and 820 ohm resistors.
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