04-20-2015, 11:35 PM
Dave
Most old paper cap devlope leakage oved time. Matter of properties of the materials.
This translates into DC currents, small though they might be, in places where there should be none. Which changes DC biases, or load power sources.
Now, you could check every cap for value and leakage, for which you will have to take it out and test it with an appropriate tester(I do not have such a tester) or you could replace them. When replacing, you could restuff old shells with new caps so it will look authentic if this is of concern.
But simply not replacing them without checking is not a great idea.
Most old paper cap devlope leakage oved time. Matter of properties of the materials.
This translates into DC currents, small though they might be, in places where there should be none. Which changes DC biases, or load power sources.
Now, you could check every cap for value and leakage, for which you will have to take it out and test it with an appropriate tester(I do not have such a tester) or you could replace them. When replacing, you could restuff old shells with new caps so it will look authentic if this is of concern.
But simply not replacing them without checking is not a great idea.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
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