how to make this esr meter work with 250uA Panel meter

dytln_02 · 27th January 2007, 10:23 PM

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.

Zen Mod · 27th January 2007, 11:13 PM

put trim pot instead R17.......say... 5K

moamps · 27th January 2007, 11:13 PM

Try using lower value for R17.

Regards,
Milan

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

27th January 2007, 10:23 PM	#1
dytln_02 diyAudio Member Join Date: Jan 2006 Location: solo	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.

27th January 2007, 11:13 PM	#2
Zen Mod diyAudio Member Join Date: Jan 2003 Location: ancient Batsch , behind Iron Curtain	put trim pot instead R17.......say... 5K __________________ my Papa is smarter than your Nelson ! (tnx to , clean** thread is here ; Cook Book is here ) EX YU DiYA forum is here : http://www.diyaudio.rs/

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27th January 2007, 11:13 PM	#3
moamps diyAudio Member Join Date: Oct 2002 Location: Croatia	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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