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Old 27th January 2007, 09:23 PM   #1
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Default how to make this esr meter work with 250uA Panel meter

I have build this ESR meter from this site
http://members.shaw.ca/swstuff/esrschematic.png

http://members.shaw.ca/swstuff/esrmeter.html

it's work but i can not get 50uA Panel meter , so I used 250uA panel meter....Now my problem is that it can not drive my 250uA meter to its full scale deflection
can some one help me to modify this circuit to work with 250uA panel meter.
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Old 27th January 2007, 10:13 PM   #2
Zen Mod is offline Zen Mod  Serbia
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put trim pot instead R17.......say... 5K
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Old 27th January 2007, 10:13 PM   #3
moamps is offline moamps  Croatia
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Try using lower value for R17.

Regards,
Milan

EDIT: How about that, the same answer the same second...must be right.
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