[R-390] Re: R390A meter movment current.

[Mark Huss]

The audio meter is a standard 600 ohm VU meter.  0dB is 0dBvu (1mW into 
600 ohm load)
The Signal Strength meter is a real odd-ball.  Worse, its DC resistance 
is critical to the operation of the AGC.  the meter movement is 16.7 to 
17 ohms.  and full-scale current is xxx.  Jan Skirrow 
http://www.skirrow.org/Boatanchors/ uses an eight-pin op-amp to convert 
between the meter circuit and the meter you happen to have.
Flowertime01 at wmconnect.com wrote:

>Fellows,
>
>I do not have a R390A parts manual so I need some help.
>
>What is the meter current for the R390A line level meter and the signal 
>strength meter?  I don't need an exact value. What is the nominal or specified full 
>scale current?
>
>Hell I do not think I ever knew, the little critters either worked or I got a 
>new exact replacement from supply. I never use to care how much current it 
>needed to peg the needle to the right side.
>
>Thanks
>
>
>
>
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