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I do not know what the fuss is about always changing the filter caps?
Sure, they should be replaced if you are not going to reform them. Certainly they will explode if the equipment is powered up after sitting idle for thirty or forty years.
I have had no problem with most can electrolytics. I simply reform the dielectric. It is important to ensure the dielectric reforms; eg the leakage current remains low. After ensuring the dielectric reforms okay, monitor the capacitors while the equipment is powered: I'll bench test for at least a couple of weeks. If the capacitors get even slightly warm, they must be replaced. If they remain cool, they'll probaby last another 50 or 60 years.
I have a number of old radios and TV's with most or all original electrolytics and they work fine.
Last edited by Penthode; 11-28-2012 at 12:45 PM.
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