Circuitry for operating fluorescent lamps with no stroboscopic effects

Circuitry for operating at least three fluorescent lamps with no stroboscopic effects in a single-phase alternating voltage source, whereby each lamp circuit (1;

• 2;
• 3) has at least one inductive resistor (1.11;
• 2.11;
• 3.11) and one starter device (1.12, 2.12, 3.12), characterized in that
• a first lamp circuit (1) is connected in the usual way to the two conductors (S;
• Mp) of the single-phase alternating voltage source;
• a series oscillating circuit (4) consisting of an inductive resistor (L) and a capacitor (C) is arranged in parallel with the first lamp circuit (1);
• and
• a second lamp circuit (2) is connected between a conductor (S) of the single-phase alternating voltage source and the point of connection (Vp) of the inductive resistor (L) and the capacitor (C) of the series oscillating circuit (4), and a third lamp circuit (3) is connected between said point of connection (Vp) and the other conductor (Mp) of the single-phase alternating voltage source.