Re: volume control adapter?

["Simon Biber" <simon@basilisk2.cjb.net>]

in addition:

a quick search on google for...   volume control circuit
reveals this:
http://www.hut.fi/Misc/Electronics/circuits/pc_speaker_volume.html

This is my circuit, with a 470 Ohm potentiometer.

Simon.

> > Put a potentiometer between the speaker and the motherboard.
>
> This makes sense.
>
> > This way the speaker will get a variable amount of the signal from the
> > motherboard. As for the size of the potentiometer, I don't know but I'd
>
> Okay
>
> > recommend a logarithmic one as it follows the percieved volume better.
>
> What the heck is a logarithmic pot?  All that I have seen are linear, or
close
> to linear.
>
> Also, why are you grounding one side of the pot?  This will probably just
give
> you signal loss.
>
> Try using a cheapo 1K pot from Radio Shaft and wire two leads together
toward
> one end.  Then
> hook it in series with the signal side of the speaker.  The wiring of the
two
> leads effectively cuts
> the POT in half.  All in all you will probably have to turn down the pot
> because the resistance will
> be too high toward one end.  The other option to this is to build a
circuit
> using a LM386  Op Amp
> (also at Radio Shaft) to boost the signal and give better volume control.
I
> would recommend
> picking up the Radio Shaft book on op amps.  One more option is wire a cap
to
> signal wire
> and wire the other end to an audio jack.  You will also need to wire
ground to
> the jack as well.
> This will let you hook up external speakers, especially amplified, to your
> Apple.  This might
> end up being the easiest route for the greatest flexibility.  Anyone ever
> thought of recording
> Apple game music?
>
> Electricity flows here,
> Frank
>
>
>
>
>