The present invention relates to an amplifier with a (14) of the "push-pull" type output (12) and input. The amplifier, (V and V + -) between the two supplies are connected in series opposition, the output (14) and the main amplifying branch, including the (18, 20) amplification of the two transistors between both are connected, A control circuit for amplifying transistor connected to the input (12) to receive, respectively, as input the amplified signal (18, 20) respectively (22, 24), I have a. Between the output transistor (18, 20), respectively (14), unit having a non-linear response of the (38, 40), the control circuit of the transistor, respectively (18, 20) that the main amplifying branch, (22, 24 in input), and a (30, 32) nonlinear compensation signal introduction means adapted to provide a minimum flow of current (38, 40) unit having a linear response. [Selection] Figure Figure 1
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