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Marakanetz. capacitance could be OK but ESR and/or leakage too high. It is doubtful a 50 year old electrolytic is still in spec.
Rrog, half life is the time it takes for something to decay or decline by 50%, it is not the time it takes for 50% of a group of objects to fail. For instance; the half life of a discharging capacitor is the length of time it takes for the charge to drop 50%. The half life of an ingested drug is the time it takes the body to eliminate half of it.
http://en.wikipedia.org/wiki/Half-life
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Marakanetz. capacitance could be OK but ESR and/or leakage too high. It is doubtful a 50 year old electrolytic is still in spec.
Rrog, half life is the time it takes for something to decay or decline by 50%, it is not the time it takes for 50% of a group of objects to fail. For instance; the half life of a discharging capacitor is the length of time it takes for the charge to drop 50%. The half life of an ingested drug is the time it takes the body to eliminate half of it.
http://en.wikipedia.org/wiki/Half-life
.