linuxaudio.org

On Thu, Nov 16, 2006 at 08:40:58AM +0000, Rob Fell wrote:
> >Can you give me a hint on how to identify an inductor? My notebook case

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>

> An inductor is a coil of wire wound (several turns) around some kind of

> core.  If it's an encapsulated type it may be harder to identify.

They can take many forms, down to a simple ferrite bead on a wire.
> Do you have a stethoscope? Unload the machine and get that noise back.

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> Now listen.  Can you identify the component?

That would work if the stethoscope's pickup is small. Or you

could use a 'microphone probe', a small mic with an acoustic

tube fitted. 
Another practical trick is this. You need a small wooden

stick - it should be light, hard, and of course non-conducting.

A wooden match or toothpick would do. Use it to *lightly* touch

the component you suspect. This should change the sound, and

you may also feel it with your fingers.
--

FA
Lascia la spina, cogli la rosa.