[R-390] Meters

[Roy Morgan]

At 09:50 AM 5/8/03 -0500, you wrote:
>Okay, we can figure out the internal resistance.
>
>Now, assume I find a 1ma fs meter that has an internal resistance different
>from what I need.  Is it possible with a combination of series and parallel
>resistors to achieve the 17-ohm (or whatever it needs to be) resistance to
>make it swing full-scale and appear to have 17-ohms in the circuit?


Yes but it won't be full scale one milliamp any more.

If you find a higher sensitivity meter (say 100 uA) movement with higher 
resistance you may be able to make a resistive network to make it behave 
properly (one ma and 17 ohms)

Roy


>  I
>assume so but I don't like to assume...
>
>Barry(III) - N4BUQ
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- Roy Morgan, K1LKY since 1959 - Keep 'em Glowing!
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