EMI Filter Hookup

To: "'Tesla List'" <tesla-at-pupman-dot-com>
Subject: EMI Filter Hookup
From: Tesla List <tesla-at-stic-dot-net>
Date: Sun, 21 Jun 1998 23:38:38 -0500
Approved: tesla-at-stic-dot-net

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From:  Bert Hickman [SMTP:bert.hickman-at-aquila-dot-com]
Sent:  Saturday, June 20, 1998 9:26 PM
To:  Tesla List
Subject:  Re: EMI Filter Hookup

Tesla List wrote:
> 
> ----------
> From:  Shaun [SMTP:shaunobrien-at-geocities-dot-com]
> Sent:  Saturday, June 20, 1998 2:06 AM
> To:  Tesla List
> Subject:  EMI Filter Hookup
> 
> I bought 2 - 40A EMI filters from MECI for $9 each and I recall
> someone saying something about if you use one after your variac
> to hook the load up the the variac and line to the HV transformer.
> Did I remember this right? I'm going to use 1 filter on either side
> of my variac.
> 
> Thanks.

Shaun,

That's correct... although with most filters it really doesn't matter.
These filters are most often used to block EMI from getting INTO a piece
of sensitive equipment from the AC mains. In the case of your coil,
you're trying to prevent the conducted EMI being generated by your coil
from getting back into your AC mains. 

-- Bert --