Just because I haven't seen it mentioned here.
And just because there may be thousands of polarized
electrolytic capacitors out there for every
available non-polarized (NP)electrolytic capacitor,
the following is what to do to make an NP electrolytic
if you only can find the polarized kind: Put two (2)
equal value polarized Cs in series in polarity
opposition. That is, connect the two + ends or the
two minus ends together to get the series pair.
The resulting non-polarized C is equal to one of the
pair and the combination is non-polarized.


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