[NJARC] Mystery Meter

[Al Klase]

Joe,

What you have is a galvanometer, an extremely sensitive zero-center 
micro-ammeter.  The were typically used to zero a Wheatstone bridge 
<https://en.wikipedia.org/wiki/Wheatstone_bridge> when making precision 
resistance measurements.  There are a lot of these kicking around, 
sadly, and nobody cares.  Nice box for a crystal set.

Al

Al Klase – N3FRQ
Jersey City, NJ
http://www.skywaves.ar88.net/

On 3/13/2016 3:29 PM, Joe Giliberti wrote:
> Just remember
> Reply = Poster
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>
> _________________________________________________________
>
>
> Hey all!
>
> I picked this up at the flea market today. Don't really know what it 
> is. Maybe a potentiometer? It is made by Leeds & Northrup. It takes 
> one D battery inside. Based on other meters from the same company I've 
> seen, there should be a label inside the box lid, but there's nothing 
> on this.Any idea what its function is or its age?
>
> Thanks Guys!
>
>
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