[sdiy] emulating bi-polar capacitors

Gordonjcp gordonjcp at gjcp.net
Tue Feb 15 19:27:59 CET 2022

On Tue, Feb 15, 2022 at 09:42:30AM -0800, Danjel van Tijn / intellijel wrote:
> With high prices and scarcity of bi-polar caps I am trying to find the best
> way to emulate them
> using back-to-back polarized electrolytics.
> The most common solution I have seen is to simply connect them in series
> (negative terminal to negative terminal).   So if you needed 47u NP  you
> would take two 100u in series.

I've never bothered, I've never noticed a difference in just using a 47μ instead of playing about with back-to-back capacitors even after the thick end of 40 years the earliest stuff I built that way still has capacitors that capacitate just fine.


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