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I could have done with reading this article a week earlier.

I just built a converter to allow earphones to be used in aircraft audio panel outputs which are typically 150-350 Ohms. Another bizarre thing I learnt is that 1/2" and 1/4" stereo jacks are wired opposite ways.

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Not sure if we are talking about the same thing, but on a flight with a Boing 777, I found the throw-away headphones that they hand out upon boarding with the very strange connector (dual mono jacks) to be so bad as to be nearly useless.

I tried to cut the cable, remove the isolation and connect my Apple earbuds, which worked somehow but not very well because the (very thin) wires were individually isolated. Did you come up with a solution?

There are adapters you can buy for like 3$.

How did you learn that 1/2" or 1/4" head phones would be wired "opposite ways"? I would doubt that this is the case.

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