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[TowerTalk] Monitor Wavies was:How to mount choke balun?

To: <towertalk@contesting.com>
Subject: [TowerTalk] Monitor Wavies was:How to mount choke balun?
From: FireBrick" <w9ol@billnjudy.com (FireBrick)
Date: Mon, 19 Nov 2001 20:59:08 -0600
As the new LCD displays get cheaper and cheaper, we will not only enjoy the
increased useable screen size, but less noise in the radio and less
susceptibility to power transformers.


----- Original Message -----
From: "Ronald C. Barnes" <ka1kjz@home.com>
To: <w7why@harborside.com>; "TowerTalk" <towertalk@contesting.com>
Sent: Monday, November 19, 2001 8:19 PM
Subject: [TowerTalk] Monitor Wavies was:How to mount choke balun?


>
> That's a pretty common problem, regardless of what shields who, when and
> why...  power transformers in amps kick up alot of magnetism.  Just think
> of the Astron power supplies, when you turn them on the 12V transformer
> sucks the top of the case down (KERTHUNK!!).  Some astrons will actually
> jump around as the top buckles, springs back, buckles, and so on.
>
> My CABLE MODEM, with no supply inside, tugs the convergence off on the
side
> of the monitor it sits on.  At least your magnetic interference isn't so
> bad as to pull your convergence off and give you all sorts of pretty
rainbows.
>
> The only way to cure this is to move the monitor out of the way, or the
> amp...  You may try a piece of sheet steel, that might cut it down some,
> but spacing is always good.
>
> Ron :)
>
>
> At 02:44 AM 11/18/01 +0000, Tom Osborne wrote:
>
>
>
> >Tom Rauch wrote:
> >
> > > Aluminum is a very effective shield if it is thicker than a few >skin
> > depths.
> >
> >Hi Tom, et al.
> >
> >I have my computer monitor setting just above my amplifier, and
> >when I turn the amp on, I can see the 60 cycle vibrations on the
> >screen.  Somehow the power transformer is interfering with the
> >monitor so guess the magnetic field must be getting through the
> >case somehow.  73
> >Tom W7WHY
> >
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> >
> >-----
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>
> List Sponsored by AN Wireless:  AN Wireless handles Rohn tower systems,
> Trylon Titan towers, coax, hardline and more. Also check out our self
> supporting towers up to 100 feet for under $1500!!
http://www.anwireless.com
>
> -----
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>


List Sponsored by AN Wireless:  AN Wireless handles Rohn tower systems,
Trylon Titan towers, coax, hardline and more. Also check out our self
supporting towers up to 100 feet for under $1500!!  http://www.anwireless.com

-----
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