[GreenKeys] Panel meters and such.

[Jeffrey D Angus]

For teletype loop metering the preferred range is 100 mA.
You can, of course, buy them new from Mouser for $89.74
<http://www.mouser.com/search/ProductDetail.aspx?R=0virtualkey0virtualkeyTV2DMA100>
And KNOW that they are indeed 100 mA full scale and they are +/- 2%
accuracy.

I also know that most of us here snatch things at swap meets or on eBay
that "catch our attention" and for considerably less.
The caveat of "buyer beware" should never be far in these cases.

My "junk box" has about 20 or so DC Amp meters, some are "as marked"
and others, well, no.
As I mentioned in my example, I took a 1 mA meter and added a shunt to
it so that it reads 100 mA full scale.
This is how the game is played when you're inventory is limited to "stock
on hand."

You can quote all the data sheets you want for what something should
be, but that will not help when something is what it is, and not what it
should be.

-- 
Jeff-1.0
wa6fwi
http://www.foxsmercantile.com


---
This email has been checked for viruses by AVG.
http://www.avg.com