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Old 28th July 2002, 04:02 AM   #1
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Question Electrostatic Shields

Does anyone know where it is possible to purchase electro-static shields for transformers (not toroids as this is a tube project.) ?

The transformers which I am aquiring for my current project have either bell ends or are bare. As I am mounting them on the top of the chassis, I would like to have them covered up. Non-inductive metal (ie copper, aluminium or brass) would be my number one preference. I have been scouring the net for parts dealers which sell shields sepearately from their transformers and have found no joy.

Thanks in advance.
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Old 28th July 2002, 04:54 AM   #2
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Default Re: Electrostatic Shields

How about something non-metal (plastic, wood...) lined with Mumetal?

Mumetal For Sale


disclaimer: i have a vested interest
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
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Old 28th July 2002, 06:27 AM   #3
Colt45 is offline Colt45  Serbia
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You could solder up a brass or copper box, then sand/file/gind the corners and paint it.. dont know if you're into that though..

A Power tranny i pulled out a 50's TV the other day seems to have one tap with continuity to nothing, and it was grounded. I assume it is some kind of sheild. (big honking pT too )
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Old 28th July 2002, 04:41 PM   #4
dhaen is offline dhaen  Europe
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In my experience, ES shields are placed between the primary and secondary. This makes retro-fitting very difficult.
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Old 12th August 2002, 12:40 PM   #5
dice45 is offline dice45  Germany
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agreed. No retrofitting possible, re-build required. Unaffordable.

Better buy a new trannie having an electrostatic shield winding.
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Old 21st August 2002, 02:48 AM   #6
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If I read you correctly you want to cover up your tranny so it looks more pleasing ?
Since I have no idea about the size of it I can't really point you in one direction but I found one company that specializes in shielding: http://www.mushield.com/.
Electrostatic shields go inside the tranny and cannot be retrofitted.

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