Re: [linux-audio-user] Re: The famous "Jack Hum" (Can't record and desparate)

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To: <rob@...>, A list for linux audio users <linux-audio-user@...>
Date: Thursday, November 16, 2006 - 12:04 pm

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

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.

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.


Lascia la spina, cogli la rosa.

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Re: [linux-audio-user] Re: The famous "Jack Hum" (Can't reco..., Sampo Savolainen, (Mon Nov 13, 11:50 am)
Re: [linux-audio-user] Re: The famous "Jack Hum" (Can't reco..., Fons Adriaensen, (Thu Nov 16, 12:04 pm)