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Grounded Power Cord for Turntable - why not??

None of my turntables use a grounded power cord, and none of them use a quality power cord. I am planning on changing the power cord on my JVC TT101 and was thinking of grounding it but am rather hesitant due to the above observation.

The reason I want to change the lamp-cord to a shielded, high quality cord is to both give the TT cleaner power and to prevent emi from leaking out of the cord into the myriad of signal carriers that surround it.

What say ye?
aigenga

Showing 2 responses by jea48

jea48
4,266 posts
 
The reason I want to change the lamp-cord to a shielded, high quality cord is to both give the TT cleaner power and to prevent emi from leaking out of the cord into the myriad of signal carriers that surround it.

What you describe above would not ground your TT. It would shield the PC...

In this case the shield of the PC would connect to the AC plug ground pin only. On the other end of the PC tape it off. TT end just floats....

Grounding the TT would mean connecting the chassis of the TT to the safety equipment ground of the wall receptacle. This could cause an unwanted ground loop hum.
jea48
4,266 posts
 
I understand the concern on creating a ground loop and in fact I have floated the ground on my other sources; but I never thought to float it at the device side.
11-13-11: Aigenga
Just to be clear here I am not talking about floating the safety equipment ground on a piece of equipment which is designed for its use...

I am referring to the shield of a PC....
Jim
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