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High ESR capacitors: Difference between revisions
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High ESR is a common problem. It is easy to test for this without removing | High ESR is a common problem. It is easy to test for this without removing | ||
the capacitor in question. Connect a good capacitor in parallel with the capacitor in question. If the problem goes away, the original capacitor is probably bad due to high ESR and/or reduced capacitance. | the capacitor in question. Connect a good capacitor in parallel with the capacitor in question. If the problem goes away, the original capacitor is probably bad due to high ESR and/or reduced capacitance. | ||
Modern electrolytic capacitors are available in a wide variety of ratings and shapes. Replacing old electrolytic capacitors with new ones is a straightforward procedure. Just make sure that the new one can fit, mechanically. | |||
* [http://www.nmr.mgh.harvard.edu/~reese/electrolytics/ Tim Reese's page on replacing electrolytic capacitors] | |||