Non-Polarized Electrolytics

[Findm-Keepm]

Just tried that - no joy. Less than 50uA leakage either way. Value still x2 and the same as before. I found an old 10uF Non-polar cap on an Acer CRT monitor board - it too reads nearly twice the value at 19.8uf. Two crossovers I've got yielded some 8uF caps - old (1976 dated codes) but they read 12uf each. Tolerance isn't stated, so I've no quantitative means to determine validity in checking those. Odd thing is, all the polarized caps and even a 5uf 50V film cap check dead on or within tolerance.

It isn't my LC102, becuse my EDC checker reads the same. The EDC meter is 1980's technology that was a throwaway from NASA Langley. I have a Paco cap tester that uses an eye tube - you adjust the tube for minimum opening of the eye and read the value from the dial. It has 8VAC open circuit across the leads, and reads the Non-polarized caps high as well. Regular caps check fine.

I think I'll dig around the web some more. All the text books mention very little about non-polarized caps.

Cheers,