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Unread 24-02-2005, 07:16
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Al Skierkiewicz Al Skierkiewicz is offline
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Re: Strange Multi-Turn Potentiometer Problem

Quote:
Originally Posted by coreyjon
One question though, As I am mainly mechanical, and my quick dabble in electronics the other day was only due to the lack of more knowledgeable people, (I did take DE a few years ago) but how much heat can these pots handle, it seems like too much re soldering will cause the internals considerable damage. I'm sure This has happened before, I was just wondering if there is a rule of thumb..re-solder more than twice, expect a dead pot, or something along those lines.
There is no rule of thumb on this. A careful job with the correct technique can rework parts many times without damage. Often it is a combination of heat and pressure that cause the components to be pushed out of alignment. Since the majority of pots you can buy are plastic body construction, it doesn't take much to melt the plastic and push a terminal a fraction of an inch. Without knowing the part in question, it is also possible you have a conductive plastic element. Heat is disastrous to these types of pots. You might consider some type of push on terminal in the future. That way no heat is applied to the pot and it is much easier to change if damaged.
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Al
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