Quote:
Originally Posted by boxdoctor
Just a small point on the above subject - If you connect electrolytics in series, you will also have to bear in mind that the E.S.R. will probably be materially larger than that of a single unit rated to do the same job. If you use two identical caps , then the E.S.R. would be twice that of one of them. This probably wont matter in valve equipment, but would need to be borne in mind in the case of a S.M.P.S. or similar application. Tony
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I agree, but the ESR of modern caps is very low (this I know from testing, not assumption) while the ESR of the original caps would probably not be up to current production standards. However, for an SMPS repair I would always use a single cap of the correct spec and of reputable brand, regardless of cost. With over 700 SMPS repairs under my belt, I know that cheap electros (ex China) are not advisable for SMPS use, and I will only use known brands of good repute.
Cheers
Billy