An electronic amplifier for amplifying an input signal has a branching node, a supply branch, a balance branch, an auxiliary branch and a load branch. All of the branches are connected in parallel to each other relative to the branching node and a reference potential. The supply branch supplies a DC voltage to the branching node. The balance branch absorbs and/or storing electric energy. A current supply device supplies a DC current. The control switch, the current valve and the current source are in different branches. The control switch, in a pass current state, establishes a current flow from the supply branch into either the auxiliary branch or the balance branch. In the block current state, current flows from the current supply device to the balancing device. The supply, balance and auxiliary branches provide an amplified signal to the load, controlled only by the input signal at the control switch.