Line scanning circuit for a television receiver

A line scanning circuit for a television receiver, comprising:

• a line deflector coil connected in series with a trace capacitor,
• a first bidirectional switch comprising a thyristor and a diode connected head to tail, this first switch being connected in parallel with the unit formed by the line deflector and the trace capacitor,
• a second bidirectional switch comprising a thyristor and a diode connected head to tail, and controlled by a signal from a circuit oscillating at the line frequency,
• a reactive circuit comprising a first inductance in series with a capacitive network, and electrically connecting the junction between the anode of the thyristor and the cathode of the diode of said first switch to the junction between the anode of the thyristor and the cathode of the diode of said second switch, said junction of said second switch being furthermore connected to a DC voltage source through a second inductance, and said second switch allowing when it is in its closed position, on the one hand, an oscillating current to pass into the first switch so as to enable the current in the thyristor of said first switch to be cancelled out and, on the other hand, energy to be transferred from the source to the deflector coil associated with the trace capacitor,
• wherein said first switch is controlled at the gate of its thyristor by a signal derived from the signal available at the junction between said first inductance and said capacitive network of the reactive circuit.