"Eeyore" wrote in message

John Fields wrote:

Eeyore wrote:
A would be an amplifier (I haven't ever seen that btw)

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Then how would you know?

Anyway, it's not for 'amplifier, it's for 'assembly'.

Which is hardly a pcb component is it ?

Sure, it could be a smaller board.


IC is self-explanatory and is widely used in Europe
U is some weird US practice. U for what ?
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Unit.

Terrell disagrees. I have now heard explanations of Unknown, Unique
and Unit !

IC otoh is 100% unambiguous.

U is 100% unambiguous too. It means IC.


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