How about grounding with the shielding?

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ChopSauce
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How about grounding with the shielding?

Post by ChopSauce »

I'm planning a build using tag/terminal boards and their bolting to the chassis already provide many ground points, so :

- would it be OK to use the shield of the input wire to ground the - isolated - input jack?

This way I wouldn't have to add another ground point, as I already have somewhat too many.

I guess that it should be OK but I'm rather feeling stupid asking now & rather safe than sorry latter, plus I did some search but didn't found anything about it... :?
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xtian
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Re: How about grounding with the shielding?

Post by xtian »

Yes, good idea.
I build and repair tube amps. http://amps.monkeymatic.com
brewdude
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Re: How about grounding with the shielding?

Post by brewdude »

The shield should only be grounded at one end.
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xtian
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Re: How about grounding with the shielding?

Post by xtian »

brewdude wrote: Sun Mar 14, 2021 4:40 pm The shield should only be grounded at one end.
No. This is good advice if you're using the shield as a SHIELD, to avoid creating a ground loop.

But in this case, OP is using it as a ground wire, where the end connected to the NON GROUNDED input jack is not grounded to the chassis already. So yes, it should be connected at both ends.
I build and repair tube amps. http://amps.monkeymatic.com
ChopSauce
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Re: How about grounding with the shielding?

Post by ChopSauce »

Thanks guys!
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