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Chip Amps Amplifiers based on integrated circuits

Signal ground and pot
Signal ground and pot
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Old 4th November 2004, 01:01 PM   #1
Scribble is offline Scribble  Australia
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Default Signal ground and pot

Ok need to brush up on my principles here.

Can some one explain to me why the signal ground must be connected to one leg of the potentiometer and then to the start ground?
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Old 4th November 2004, 01:11 PM   #2
psychosteve is offline psychosteve  United Kingdom
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because it sets the input impedance of the amp, by running the signal + to - across the full value of the pot.

hope that helps, steve.. ..
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Old 4th November 2004, 03:31 PM   #3
audioPT is offline audioPT  Portugal
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And helps to avoid ground loops
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Old 5th November 2004, 02:05 AM   #4
Scribble is offline Scribble  Australia
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Cheers for your great help fella's
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