Rauschunterdrückung für Stereo

An annoying disadvantage of fluor-escent lamps compared to the incandescent variety is the flickering delay before they actually burst into life. This is because initially the gas in the tube is not at a sufficiently high temperature to ionise easily. Another reason is the fact that there is no control over the point on the mains waveform at which the current through the starter coil is interrupted.