Just wondering what peoples opinions are on this , I see many dismiss it completely .In one project with 5 filter sections ,modern caps etc I bypassed each lytic with a foil ,less than 1uf in value , It didnt make any difference to measured noise levels seen on my multimeter , what it certainly did do was change the spectum of the noise left behind ,it reduced some of the upper harmonics coming out of the rectifier appreciably. Now Im not saying i heard a difference in the sound of the amplifier as a result just that the backround noise was less perceptable, less fuzzy .. Im just putting together a big three transformer supply for my new project , I have tons of space in my new enclosure and a big bag of surplus foils . I could see why in usual supplies adding some tiny value of foil cap to bypass over one or two stages isnt going to do much . I have the space to make the foils around 1/10 of the value of the electros in my new build ,could I expect to get less midrange harmonics in the output of my supply by doing this ?
Could using metal canned foils be of any benefit or maybe keeping them screened from the transformers ?
Could using metal canned foils be of any benefit or maybe keeping them screened from the transformers ?