60_W_WITH_AC_COUPLED_OUTPUT

Published:2009/6/29 1:48:00 Author:May | From:SeekIC

Uses Motorola complementary Darlington output transistors, with MJE6044 for Q5 and MJE6041 for Q6. For 8-ohm loudspeaker, Q1 is MPS-A06 Q2 is MPS-A56, Q3 is MPS-A13 and Q4 is MPS-A06 Supply is 72 V. R5 is Z20 ohms, and R7 is 68K Same circuit is used wjth different components for other output powers down to 15 W and for 4-ohm loudspeaker. Frequency response is 20 Hz to 50 kHz for -1 dB points.-R. G. Ruehs, 15 to 60 Watt Audio Amplifiers Using Comple mentary Darlington Output Transistors, Mo-torola, Phoenix, AZ, 1974, AN-4B3B, p 3.



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