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Goerz 244376 Volt & Ammeter

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alpibucky

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Hello,

I need the schematics of this old VA-meter.
The DC readings are good but the AC ones are totally wrong.

With kind regards,

alpibucky DSC00028.JPG
 
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alpibucky

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AC uses rectified average and scales to RMS assuming Sine


What are did you get?

Thx for your answer.
When the wires are shorted, i get a 2/3 scale or so reading, whatever the position of the voltage switch.
Same reading when wires are open.

With kind regard

alpibucky
 

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