Re: Interference - RESULTS

[Jim Kearns]

I am a regular reader of the forum.  The recent excellent discussion of the radio interference problem brought back a question that has occurred to me many times before ... Have you guys ever considered putting together an informal online guide to electronics?  People could learn a lot from all of you (my students could) but the level of discussion on the forum is often hard to digest for the beginner. Declan Moriarty wrote: Recently, Somebody Somewhere wrote these words A line filter as the one depicted in my ASCII graphics will in no way take away or otherwise influence the 100Hz line cycles! It will only prevent high-frequency disturbances from either side of the filter to pass to the other side of the filter. This kind of filter by definition cannot significantly influence the power consumption of the circuit. A high-voltage capacitor - which is not present in Declan's circuit - _after_ the full-way bridge rectifier would suppress (or at least smoothen) the 100Hz oscillations of the rectified mains voltage... But this would not be called a "mains filter". That capacitor would remove the effect of the half/full power switch