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Help!! My DIY Electronics Project Doesn’t Work! Op-Amp Circuit Troubleshooting Diagnosis Repair

This video clip is kindly funded by PCBway. Please offer PCBWay a try for all your PCB requires. https://www.youtube.com/c/PCBWay Did you ever construct an electronic devices job that really did not work? Yeah obviously you did. Me as well !! So what to do when this takes place?

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I constructed this MilliOhm meter DIY job and it is not working! Allow’s see if we can function out what the problem is.

PHASES
00:00:00 Introduction
00:01:18 PCBWay Shared Projects
00:02:46 The Millivolt Meter Project
00:06:52 Selecting The Components
00:20:11 Building The MilliOhm Meter
00:46:00 Testing The MilliOhm Meter
00:47:07 Adjusting The Settings
00:50:17 It Doesn’t Work!
00:58:44 Diagnosing The Problem
01:06:22 Enlightenment!
01:09:34 Improving The Accuracy
01:14:21 Epilogue

Made use of in This Project (web links are affiliated, I obtain a small payment from all sales but you pay the regular price).

SMD Tweezer/ DIY Kelvin Probe.
https://www.aliexpress.com/item/32855006371.html?af=ler2002&cn=001&cv=yt1.
OP07 Op Amp.
https://www.aliexpress.com/item/1005001896512155.html?af=ler2002&cn=001&cv=yt1.
IRF540 Mosfet.
https://www.aliexpress.com/item/32790786150.html?af=ler2002&cn=001&cv=yt1.
1W Zener Diode Pack.
https://www.aliexpress.com/item/1005002330654228.html?af=ler2002&cn=001&cv=yt1.
Trimmer Potentiometer Pack.
https://www.aliexpress.com/item/32912524072.html?af=ler2002&cn=001&cv=yt1.
5 Digit Volt Meter.
https://www.aliexpress.com/item/1005002957467146.html?af=ler2002&cn=001&cv=yt1.

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Thanks for your support.
Richard.

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