[Amps] PEP wattmeter

Michael J. Tubby B.Sc. (Hons) G8TIC mike.tubby at thorcom.co.uk
Mon Jan 27 11:55:36 EST 2003



> Chet Pierson wrote:
> > 
> > John,
> > Do you know the full scale current of the meter? I have a board that
> > will add peak reading to most wattmeters up to 200 ua.
> > Chet
> >  Bird Peak Reading Board
> 
> I think the bird meters are 30 uA. 
> -- 
> Dr. David Kirkby,
>

There are two types of Bird meter movement that I am aware of:

1. The standard movement used in models like Bird 43 which is
   30uA and about 1350R internal resistance

2. The 100uA movement used on the Bird "High Power" range
   of instruments for which I don't know the internal R of the movement


Mike G8TIC



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