I found a shared Project on PCBWay to build a transformer dot convention tester. It didn't work at first and gave me a bit of a runaround to figure out why. In doing so I found some unexpected behaviour in OpAmp circuits. This video is a great way to learn how OpAmps work in real situations, and there are still some UNANSWERED QUESTIONS here for you guys to figure out. The last 20 minutes of the video features a 'live chat' session with Detlef and Myself where we discuss the circuit operation and possible ways to improve it.
This video is kindly sponsored by PCBway. Please give PCBWay a try for all your PCB needs. https://www.youtube.com/c/PCBWay
https://www.pcbway.com
If you use this link when creating a new PCBWay account and you will receive a free $5 discount coupon: https://www.pcbway.com/setinvite.aspx?inviteid=561767
Other creators and channels I work in collaboration with:
The Electronics Channel - live Q&A streaming sessions and more, every second Sunday.
https://www.youtube.com/@theelectronicschannel
Det Builds Stuff - https://www.youtube.com/@detbuildsstuff8128 (Detlef)
Retro Upgrade - https://www.youtube.com/@RetroUpgrade (Carlos)
Gran Canaria Uncovered - https://www.youtube.com/@GranCanariaUncovered (with Detlef and Julie. Not electronics related)
Other PCBWay projects featured on LER
The 0-30V 0-10A PSU Project
Part 1 https://www.youtube.com/watch?v=bmvM-QxgVPE
Part 2 https://www.youtube.com/watch?v=-Bk2sgGXT6s
Part 3 https://www.youtube.com/watch?v=VwBXrKrsUFY
PCBWay Projects on Learn Electronics Repair
Amazing $1 Short Finder
https://www.youtube.com/watch?v=P_2GGNr4q1s Part 1
https://www.youtube.com/watch?v=XEbWyQgX_Mc Part 2
https://www.youtube.com/watch?v=0eixDdCpiO4 Upgraded Version
DIY Huntron Tracker / Octopus Curve Tracer
https://www.youtube.com/watch?v=nWCZCLGtyDU
MilliOhm Meter
https://www.youtube.com/watch?v=rDw3oVqJHHI Part 1
https://www.youtube.com/watch?v=Sz1CqJltWEY Part 2
https://www.youtube.com/watch?v=atynxUcdRxY Part 3
10KHz -255MHz RF Signal Generator
https://www.youtube.com/watch?v=a5MNlbG8eRw Part 1
https://www.youtube.com/watch?v=btsEM8XNmuk Part 2
300W Active Load
https://www.youtube.com/watch?v=NAbBENC682w
Amazing $1 ESR Meter
https://www.youtube.com/watch?v=fqrWoamhvIM
Ring / Flyback Tester
https://www.youtube.com/watch?v=0-LrAW6PpKk
Amazing $1 Ring / Flyback Tester
https://www.youtube.com/watch?v=ndkrHqTZpwA
Signal Tracer
https://www.youtube.com/watch?v=LyrOzRsCPqA
Signal Injector In A Pen
https://www.youtube.com/watch?v=_aI6TLLVpDQ Part 1
https://www.youtube.com/watch?v=qK8Iv3YeSzM Part 2
https://www.youtube.com/watch?v=9XgLonLvX2U Part 3
Modified ATX PSU Analyzer
https://www.youtube.com/watch?v=yw747J-9F1s
Single/Dual Op Amp Tester
https://www.youtube.com/watch?v=cGRPBV-_ZQc
Zener Diode & LED TEster
https://www.youtube.com/watch?v=fuCJpt_Vfto
TL494 Tester
https://www.youtube.com/watch?v=W66yahrJA5U
TL31 Tester
https://www.youtube.com/watch?v=LvGehyWLS80
Learn Electronics Repair is now on Discord! Come and join the fun, it's free.
https://discord.gg/vam6YC8vwU
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Richard