Re: polar vs nonpolar capacitors


Dave wrote:

> I am interested in upgrading some audio components, and a lot of DIY tweak
> mention "replace the electrolytics in the signal path with Black Gate or
> other low-noise nonpolar capacitors." I know that polar capacitors cannot
> tolerate reversed polarity, and that bi-polars can as they are really two
> back-to-back capacitors. What is a non-polar? How is it different from a
> bipolar?

Non-polar electrolytics are 2 polar elctrotytics back to back in a single
case.

The validity of the benefit of black gate caps may be judged by the fact that
they are no longer in production.

Many circuits will benefit simply by fitting a larger value electrolytic
coupling cap when operated 'zero-biased'. The reason is sufficiently
complicated for me to leave it out of here for now.

Caps don't make noise - so there's no such thing as a low noise capacitor.

Most audio nuts are simply blowing out of their arseholes.

Graham

.

Relevant Pages

  • Re: Longevity of electrolytics
    ... old electrolytic capacitors were defective. ... Not having seen the older blown caps, ... that all ancient electrolytics are reliable over a long term. ... the failure rate is probably the same as it ...
    (sci.electronics.repair)
  • Re: Digital volume control question....
    ... increases in distortion that resulted from capacitors in circuit, ... using electrolytics and tantalums provided they were well ... electrolytic caps could, indeed, produce measurable nonlinearities. ... to of dubious relevance or reliability for reasons like those we have ...
    (uk.rec.audio)
  • Re: Recommended capacitors for AF circuits
    ... I believe to from my choice of polarized electrolytic caps (220n ... and 470n) where polarized caps are not indicated (application circuit ... The electrolytics are the only ones I have at the moment, ... capacitors shown on the LM1036 app ...
    (sci.electronics.design)
  • Re: Recommended capacitors for AF circuits
    ... I'm playing around with a circuit, but I am getting a lot of squeal ... I believe to from my choice of polarized electrolytic caps (220n ... The electrolytics are the only ones I have at the moment, ... capacitors shown on the LM1036 app ...
    (sci.electronics.design)
  • Re: Recommended capacitors for AF circuits
    ... I'm playing around with a circuit, but I am getting a lot of squeal ... I believe to from my choice of polarized electrolytic caps (220n ... The electrolytics are the only ones I have at the moment, ... capacitors shown on the LM1036 app ...
    (sci.electronics.design)
Loading