TV on bench with vented main filter cap, (220uf @ 200v), and I've a simple query. Can I up the ante on this and replace with a 470uf @
Well, your thought is correct about smoother DC, however, there are other considerations that are important as well. Inrush surge current is the first thing that comes to mind. When you first apply power to an uncharged capacitor, it looks like a dead short across the line. The higher the capacitance, the higher the surge current. If the surge is large enough, you'll blow the line fuse. Unless you just like digging around in a dead TV set just to change the fuse every few times it's powered on, it would definitely be a nuisance.
Within certain limits. More likely it'll make the inrush current last longer, which could indeed also blow the fuse.
Graham
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I also wonder if the cap is the only problem.
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Going higher on working voltage is a better (and very safe bet), but probably it was just a cheap physically small capacitor and replacing it will do the trick.
Best regards, Spehro Pefhany
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