On 16 huhti, 06:16, wrote:
It's an extremely common failure and VERY aggravated by heat.
Panasonic FM and FC series through hole and FK for surface mount
recommended. Nichicon PW also very good. Many of these show no sign of
bulge / leak but test bad with an ESR test.

Indeed. While some do, majority of the bad caps _don't_ give any
visible signs. So ESR measuring is required to tell the condition of
caps. Even capacitance measurement doesn't tell the truth.

See more about ESR and its measuring he
http://www.ludens.cl/Electron/esr/esr.html

And btw, yes, the bad caps are the most likely problem in the set.

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