Author Topic: Homemade esr meter!  (Read 5025 times)


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Homemade esr meter!
« on: June 14, 2013, 03:09:00 PM »
Hi from Romania! ;)
This is my first post on the forum... 8).and i like to present to you my homemade esr meter!
The original schematic,pcb and ideas can be find in this web site:
Some pictures:
The two leads go to the analog multimeter!
P.S Sorry for the crap language.. :'(.i am learning to write! ;D
« Last Edit: June 14, 2013, 04:15:14 PM by Adrian »


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Re: Homemade esr meter!
« Reply #1 on: July 26, 2013, 03:40:11 PM »
You did a good job here. In fact, way better than i did when I was at your age. Hope your success inspires you to the next project. Keep 'er up! :)
I did a similar ESR meter based on the same schematic, a couple of years ago. But, I simplified it a bit (in my opinion) by using a LM311 as a signal source and then fed the signal to a little transformer (I rewound it) robbed from a CFL power supply.
Don't worry too much about your english.


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Re: Homemade esr meter!
« Reply #2 on: July 30, 2013, 09:55:55 AM »
Thanks ;D
Now i'm working on a digital esr meter!
70% is finished 8)


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Re: Homemade esr meter!
« Reply #3 on: July 30, 2013, 12:57:30 PM »
Hello Adrian...I missed this first post...hats off to you and thanks for the post. Do keep up the great work!

Play, discover, learn and enjoy! (and don't be scared to make mistakes along the way!)