A cable question, sort of...

When you argue with him on technical subjects (I wouldn’t) better check first if you have his education and experience.

OK, what level of education does he have that nobody should argue with him?

AFAIK Masters in EE in prestigious Columbia University.  What about you?

AFAIK Masters in EE in prestigious Columbia University. What about you?

EE as well.  Just because he has a Master in EE, does not mean he's right all the time.

Thank you, Kijanki.  I usually prefer to let my posts speak for themselves, but since the question has been raised my background is as follows:

BS in Electrical Engineering, Columbia University
MS in Electrical Engineering, Rensselaer Polytechnic Institute
JD (Law Degree), University of Connecticut
Licensed Attorney and Patent Attorney

33 years experience designing and managing design of analog, digital, A/D converter, and D/A converter circuits for defense electronics, primarily airborne radar systems.

Regards,
-- Al

No it doesn't but I have the same degree from less known university plus 40 years experience as a design engineer in electronics (many different fields)  and I can judge about somebody's competence.  The fact that you don't or cannot understand the principle of common mode choke and argue just to argue make me exit.  You don't make friends here.