Piher resistors and trimpots

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Carbon resistors: carbon layer on ceramic substrate
Metal film resistors: metal layer on substrate
Metal oxide resistors: non linear resistors for some application. E.g. TV degaussing resistor, electonic fuses....
 


What is the difference between a piher trimpot and a carbon trimpot?
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I'm using PIHER trimpots since I was a school boy and didn't notice a difference yet. Do you have any indications that there should be a difference?
 

FvM said:
I'm using PIHER trimpots since I was a school boy and didn't notice a difference yet. Do you have any indications that there should be a difference?
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I have no idea FvM - that is why I have decided to find out.

I have a fairly clear idea of the differences between carbon resistor, metal oxide resistors, metal film resistors and wire wound resistors. But Piher resistors represent an unfilled gap in my knowledge.
 

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