[NBLUG/talk] a problem with audio noise

[jezra]

Thanks Frank,
I have a few similar capacitors (a few 6v, one 10v, and some 35v) so
hopefully something will work. The voltage going to the amp is 5v.



> Jezra,
> 
> Use a aluminum electrolytic capacitor.
> 
> I don't know what the voltage of your power supply is.  5V?  Capacitor
> companies lie about their voltage ratings.  If you put a 5V cap on a
> 5V circuit it will eventually blow up or short out or just stop
> working. Multiply the voltage by at least two, or better yet three.
> Get a capacitor of that voltage or higher.
> 
> I don't know anything about your power supply or your amp, but 100uF
> (micro Farads) should do it.  Smaller would have less effect, but if
> that's all you have give it a try.
> 
> Aluminum electrolytic capacitors look like this:
> 
> http://image.made-in-china.com/2f0j00uBVtoMvqfNbl/High-Ripple-Current-Aluminum-Electrolytic-Capacitor.jpg
> 
>    E Frank Ball                efball at efball.com
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