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Shure M44-7 Head Cartridge feedback/hum

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DJ-Dulux View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DJ-Dulux Quote  Post ReplyReply Direct Link To This Post Posted: 15 February 2024 at 8:49am
Was a trick some time ago, to avoid having the black earth wire which often got damaged when touring etc. The black wire was internally connected to one of the line level earths, which often results in humming on 1 channel. Essentially you connect the headshell earth to the electric supply ground, not a great idea...

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snowflake View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote snowflake Quote  Post ReplyReply Direct Link To This Post Posted: 15 February 2024 at 12:39pm
Originally posted by DJ-Dulux DJ-Dulux wrote:

Was a trick some time ago, to avoid having the black earth wire which often got damaged when touring etc. The black wire was internally connected to one of the line level earths, which often results in humming on 1 channel. Essentially you connect the headshell earth to the electric supply ground, not a great idea...

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https://www.technics-service.co.uk/app/download/15133899/Internal+Grounding+Info.pdf

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DJ-Dulux View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DJ-Dulux Quote  Post ReplyReply Direct Link To This Post Posted: 15 February 2024 at 2:51pm
Originally posted by snowflake snowflake wrote:

Originally posted by DJ-Dulux DJ-Dulux wrote:

Was a trick some time ago, to avoid having the black earth wire which often got damaged when touring etc. The black wire was internally connected to one of the line level earths, which often results in humming on 1 channel. Essentially you connect the headshell earth to the electric supply ground, not a great idea...

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https://www.technics-service.co.uk/app/download/15133899/Internal+Grounding+Info.pdf


Not seen that before, cheers....
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DJ-Dulux View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DJ-Dulux Quote  Post ReplyReply Direct Link To This Post Posted: 15 February 2024 at 2:52pm
Double post.

Edited by DJ-Dulux - 15 February 2024 at 2:53pm
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