Pierre Ossman wrote:
quoted text
> On Fri, 29 Feb 2008 13:09:05 -0800 (PST)
> Alan Jenkins <alan-jenkins@tuffmail.co.uk> wrote:
>
>   
>> Pierre Ossman wrote:
>>     
>>> Many devices today are of a less than stellar quality, and singing
>>> transistors are a common problem. A high-pitch noise is created, caused
>>> by power fluctuations as the processor enters and leaves deep sleep at
>>> a high frequency.
>>>       
>> Capacitors or transistors?  The subject and the description disagree.
>>
>>     
>
> That should teach me to write commit messages when I'm tired... Capacitors is of course the right answer. :)

More likely inductors, I think.  The coils can vibrate against the coil 
if they haven't been properly potted in something.  Capacitors don't 
really have anything which can "sing".

    J
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