Re: Question about Line Filters

To: tesla-at-pupman-dot-com
Subject: Re: Question about Line Filters
From: "Dave Quecke" <djQuecke-at-worldnet.att-dot-net> (by way of Terry Fritz <twf-at-verinet-dot-com>)
Date: Mon, 26 Apr 1999 11:52:08 -0600
Approved: twf-at-verinet-dot-com

I'm afraid I don't have the answer for you.  The ones I have are in sealed
metal boxs.  They are marked with an input and an output side.  These
particular filters have a ground terminal on the input side and none on the
output.  Perhaps that has something to do with the way these are marked?

dj

----- Original Message -----
From: Tesla List <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, April 24, 1999 12:31 PM
Subject: Re: Question about Line Filters


> Original Poster: Brent L Caldwell <stretchmonster-at-juno-dot-com>
>
>
>
> Dave and Alex:
> Hey, about those filters, how are they constructed?  Do they really have
> a polarity?  What I mean is: does the filter REALLY operate differently
> in one direction that the other?
> If it is a high pass filter, it seems to me like they wouldn't because
> all the high pass filters I've ever built didn't have a polarity, you
> just ran current through them and the output on the other side was
> dependent on what the input frequency was.  You could flip the filter 180
> and connect the source to the output and the load to the input and it
> would do exactly the same thing.
> But then again, I have never torn apart those ones you buy at the store
> that are in metal boxes, so I wouldn't know.
>
> Brent
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