Ground Loops
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Don Kuenz
Jul 16, 2025, 9:15:35 AMJul 16
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A few years ago ground loops plagued my simple, two-wire, signal-shield,
audio system. 1:1 isolation transformers eliminated the ground loops.
The transformers were used in an audio mixer amplifier:
<https://crcomp.net/mixeramp/index.php>
Professionals use three-wire, signal-shield-ground, XLR, audio systems.
A paper published by a pro named Bill Whitlock provides a lot of insight
into ground loops:
<https://indianaaes.org/wp-content/uploads/2012/09/indy-aes-2012-seminar-w-notes-v1-0.pdf>
73, Don, KB7RPU
audio system. 1:1 isolation transformers eliminated the ground loops.
The transformers were used in an audio mixer amplifier:
<https://crcomp.net/mixeramp/index.php>
Professionals use three-wire, signal-shield-ground, XLR, audio systems.
A paper published by a pro named Bill Whitlock provides a lot of insight
into ground loops:
<https://indianaaes.org/wp-content/uploads/2012/09/indy-aes-2012-seminar-w-notes-v1-0.pdf>
73, Don, KB7RPU
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