Power transformer shield

dynaman · Post by **dynaman** » Mon Mar 07, 2011 4:05 pm

I've got a Fender PT with a wire for a "shield". Where do y'all typically connect it for lowest noise? Power supply ground? Earth?

Structo · Post by **Structo** » Mon Mar 07, 2011 4:36 pm

I've always put it to chassis ground.

ChrisM · Post by **ChrisM** » Mon Mar 07, 2011 4:37 pm

Main's ground.

M Fowler · Post by **M Fowler** » Mon Mar 07, 2011 5:19 pm

Ground the shield with the center taps or main ground as stated.

dynaman · Post by **dynaman** » Mon Mar 07, 2011 6:52 pm

OK, I'll just ground it with the mains. Thanks.

David Root · Post by **David Root** » Mon Mar 07, 2011 8:56 pm

I ground that with the HT CT/heater winding CT/power tubes cathodes.

Cliff Schecht · Post by **Cliff Schecht** » Mon Mar 07, 2011 10:54 pm

David Root wrote:I ground that with the HT CT/heater winding CT/power tubes cathodes.

This is what I would do. Tying stuff to the mains ground is a no-no.

M Fowler · Post by **M Fowler** » Tue Mar 08, 2011 12:14 am

Pretty sure both of us were referring the main ground of a amp where I ty all the center taps and main filter cap. That is where I ground the shield.

I have a separate ground for the green ground wire USA.

VacuumVoodoo · Post by **VacuumVoodoo** » Tue Mar 08, 2011 12:20 am

Correct name for that shield is "protective screen" and it should connect directly to safety ground.

M Fowler · Post by **M Fowler** » Tue Mar 08, 2011 12:22 am

As in the IEC safety ground?

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Power transformer shield

Power transformer shield

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