I love bifilar and trifilar windings but modem and very few audio transformers use that format.

I've wound special bifilar winding for a receiver for whistlers, RF 1~3kHz. Didn't work any better then a normal transformer.

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For RF they are the only way to go.

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Bettho, sir, you have lead an interesting life.

I can't imagine the difficulty of training non native English speakers to do technical work.

Hell it was difficult enough to work with native born Americans as student workers to do some of the simplest tasks. There was one kid I sort of wished would fall off a 6 story building. Yea the paperwork would have been daunting but a nightmare "worker" would have been gone.

The worst were the EE students, they thought they knew enough to not listen to directions in our TV facility.

I considered strangulation with 75 ohm coax a time or two....

They couldn't understand why NTSC black burst timing cables had to be 80M/4 long.....

[3.58 is ~80 meters] You calculate the length, apply violocity factor, cut the cable a foot long and trim back an inch at a time with a push on BNC. God I hated making those cables.

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Oddly enough the English and Philosophy majors actually listened and did as they were told.

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