Turntable hum.

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adrian111

AVForums Veteran
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Joined
Jun 1, 2013
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Location
Benoni
Good day,

My brother has got an interesting scenario. As soon as he connects his turntable earth to earth point it hums quite nicely :groovy:.

if you disconnect the earth however it is absolutely dead still. :facepalm:. Obviously he runs like that, but my question is:

Why would this happen?

I have also found that hum differs from cart to cart.
 
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