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On Fri, 17 Feb 2006 10:07:50 -0800, "RST Engineering"
<jim@rstengineering.com> wrote:
>Yeah, I will give you that I missed the "powered from the measured voltage"
>part. It becomes a bit less trivial. Practically impossible.
>
>As for sticking pins through the wire a foot apart, you are going to get
>more contact resistance (and corrosion as time goes on) than the shunt
>itself. If you are using the primary wire as the shunt, I would break the wire,
>use a terminal strip with a shorter piece of thinner wire a few inches long,
>then back to the larger wire.
>
I am wondering if the OP may have mis worded, or mis understood.
As you say the measurement is trivial, however I am wondering if he
didn't think of powering the meter from the same source as was
*providing* the current rather than the current being measured. That
would make sense. Then it'd be easy and as you said, practically
impossible if powered from the *measured* current.
Roger Halstead (K8RI & ARRL life member)
(N833R, S# CD-2 Worlds oldest Debonair)
www.rogerhalstead.com
>Jim
>
>
>"GeorgeB" <nospam@att.net> wrote in message
>news:4kabv1dtlti6c8tulf52m2p814925gd649@4ax.com...
>> On Thu, 16 Feb 2006 21:35:15 -0800, "RST Engineering"
>> <jim@rstengineering.com> wrote:
>>
>>>Yes, rather trivially.
>
> Stick 2 pins through the
>> insulation about a foot apart and hook them to the meter.
>
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Re: Volt / Ammeter
