All About Circuits
All About Circuits
Volume 
Semiconductors
Chapter
Practical Analog Semiconductor Circuits
PDF Version
Pages

Amplifier Circuits

Note, Q3 and Q4 in the figure below are complementary, NPN and PNP respectively. This circuit works well for moderate power audio amplifiers. For an explanation of this circuit see “Directly coupled complementary-pair,” 

Ch 4.

Direct coupled complementary symmetry 3 w audio amplifier

Lessons in Electric Circuits

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