good place to get potentiometer for meanwell

hybridcheef

Active Member
i need a 100k potentiometer but dont know whether i need a linear one or a logarithmic or whatever i dont know. can someone tell me and i linked a few in the next post sorry.
 
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Got 5 for $5 on ebay. None go up to 100%, highest is ~90%. So if I understand correctly none of them are actually 100k. Someone in the thread I made about this recommended 125k to go to max.
 
Ya I bought a few bags of the 100K cheapies and they range from 88K-115K. I used the ones over 100K and 2 or 3 of them went bad over time. The bad ones caused my driver to reduce its output power to 50% and would flicker occasionally. At first I thought my drivers were bad but eventually I realized it was the pots, even though they tested fine on the bench.

Bourns makes good stuff I wonder how these would be.
http://www.ebay.com/itm/10pcs-Bourn...602973?hash=item4b15ff581d:g:hoAAAOSwBOtY-9Es

Even if you have a pot that is over 100K you will get slightly more driver output when you disconnect the pot. You can install a switch to interrupt the pot for a small driver boost.
 
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