Hello all! Yes I know this is the most basic question ever. When I ask things like this I get replies saying I should learn the basics before hand but that's exactly what I'm trying to do here. I have played around a lot with projects and often I find multiple schematics to do the same exact project. It confuses me because some of these schematics will use capacitors and some won't. It will be the same circuit but depending who made the schematics they decide whether or not to use a capacitor. It seems to me if it works without one why do some people include it? I work in HVAC. My job does not require me to actually know anything about capacitors though. My idea has always been that they hold lots of magic to be used for things that need extra magic. Like I said please don't call me out for my lack of knowledge because it isn't helpful. I have watched many youtube videos and just can't find info on when to use the puppies. I just need a point in the right direction. If you know of any good reading material that would be great to. Thanks a lot guys and gals!