Este circuito es de un manual de amplificadores de Motorola de 1972. Los transistores no son muy comunes actualmente, pero para la salida se puede utilizar el par BD135 y 136 sin problemas. Para Q1 y Q2 se pueden utilizar los BC557 y BC547. La impedancia del altavoz puede ir de 4 a 40 ohms. La fuente debe proporcionar al menos 250 mA que es la corriente máxima para la versión de 2 W con 8 ohms.

 


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