Quote:
Originally Posted by Electronic M
I've seen ceramics with that exposed bottom before...I believe it is probably done in the factory for a purpose.
If it doesn't leak current under voltage, and if reasonably close to rated capacitance it should be fine.
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There lies the headache, it's easy to check the value of a cap with any given digital meter, but leakage is tricky w/o a costly meter or some vintage tester, :/ unless, I go and build the circuit seen here...
http://www.angelfire.com/electronic/...ting_caps.html
I do not intend to test electrolytic capacitors with it, so with 400v or more, if the cap under test is good, the reading for leakage should be 0...