Control circuit for controlling an electrical signal over a load such as a deflection circuit of a Cathode Ray Tube, comprising a first transistor for switching the electrical signal over the load, wherein the load is coupled to a collector and an emitter of the first transistor, and wherein the control circuit also comprises a resonance circuit which is coupled to a basis and the emitter of the first transistor for driving the first transistor, a power supply which is coupled to the resonance circuit for driving the resonance circuit, a pulse generating circuit which is coupled to the power supply and the resonance circuit, and a processing unit with a memory unit , characterised in that, the memory unit is arranged to be loaded with control information concerning predetermined states of the load and corresponding predetermined optimal control adjustments of the power supply and/or the pulse generating circuit, wherein the processing unit is arranged for optimally controlling the electrical signal by controlling the first transistor via the power supply and/or via the pulse generating circuit for an actual state of the load on the basis of the control information loaded in the memory unit.