Re: What do I do ?

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Scott Hanson" <huil888@xxxxxxxxxxxx>

Bart -

I have a number of military analog meters (AC voltmeters and AC 
ammeters) that have drawn metal "cups" (magnetic shields) that 
completely enclose the portion of the meter case that projects behind 
the panel. I don't know if they are steel or some more exotic 
material like mu metal, but I suspect they are just drawn from soft steel.

Regards,
Scott Hanson


----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Monday, June 26, 2006 9:00 PM
Subject: Re: What do I do ?


> Original poster: "Barton B. Anderson" <bartb@xxxxxxxxxxxxxxxx>
>
> Hi Gerry,
>
> Regarding the H fields on amp meters: A couple years ago I rewired 
> my control cabinet and routed the high current lines to and from the 
> amp together, but this made no difference. They are routed side by 
> side. Maybe a twisted-pair solution is necessary to reduce the H 
> field influence?
>
> Take care,
> Bart
(SNIP)