Constant Voltage Transformer

There are times when one feels that a stabilizer is not enough. After all, a stabilizer can correct voltage with a certain finite speed. We would think that our instruments are connected to a stabilizer and are unaware of the fact that it is stilt passing on the spikes, voltage surges, glitches, noise etc. Which are so short, that it cannot be corrected by a stabilizer. This works on magnetic saturation principle, resonating with a tank circuit of high Q factor. When incoming Mains voltage is low the capacitor provides the necessary additional gain in power, keeping the output voltage steady. On the other hand , when the mains voltage is high the leakage reactance drops the difference of voltage. This correction of voltage is instantaneous even for sudden dips and spikes.