The issue you are facing is a nasty one as many companies faced it! A supplier of electrolytic capacitors flooded the market with bad units. Here's more: [https://en.wikipedia.org/wiki/Capacitor_plague|Capacitor Plague].
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The problem was they took awhile to fail! The industry at the time did not mark the caps with date codes so its very difficult to have two in your had knowing which was the bad unit. Only in testing one by one are you able to tell and even that is somewhat subjective!
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The problem was they took awhile to fail! The industry at the time did not mark the caps with date codes so its very difficult to have two in your hand knowing which was the bad unit. Only in testing one by one are you able to tell and even that is somewhat subjective!
The issue you are facing is a nasty one as many companies faced it! A supplier of electrolytic capacitors flooded the market with bad units. Here's more: [https://en.wikipedia.org/wiki/Capacitor_plague|Capacitor Plague].
The problem was they took awhile to fail! The industry at the time did not mark the caps with date codes so its very difficult to have two in your had knowing which was the bad unit. Only in testing one by one are you able to tell and even that is somewhat subjective!