pin correspondences of a resistive trimmer

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MisterBeppe

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Hi,

Looking at this image
**broken link removed**

what are the correspondences to A, B and C (to 1, 2 and 3)?

many thanks.
 

C is center (the terminal connected to the slider), the assignment of A and B is arbitrary, unless c.w. and c.c.w. is marked in the schematic symbol or an arrow indicates clockwise rotation.

I would usually associate clockwise rotation with up direction in the schematic (A = right) but there's no clear rule.
 
So, assuming that 2 is C and B is 1, following the schematic, I should connect 1 and 2 together?
 

Thanks a lot for the explanation, FvM!
 

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