[John Folsom]

" Is true that is the early days of electronic television, tv sets had electrostatic deflexion - the deflexion was made with a magnet, not with a coil?"

You are confusing your terms. Electrostatic defeection uses electric fields (created by voltagedifference on deflection plates) to bend the electron beam. Magnetic defeection uses a coil of wire to produce a magnetic field, whose strength is controled by the current in the wiire, to bend the electron beam. Electgrons in a magnetic field move in a circular path at right angles to the direction of the magnetic field.