Volume Pot Testing

[blown240]

Is it weird that the resistance in my volume pot is highest when the shaft is centered?   If I put my meter on the center and either side, the readout goes from 0-250-0 as I sweep thru the range of the pot. Seems like it should go from zero to its highest point.

Will this cause problems?

[Danskman]

Did you measure it apart from the circuit? If not, could be due to the circuit itself; please post schematic. A pot should not react by itself like the one you describe.
BR,
Danskman

[stingray_65]

Where did you get the pot?

What is its stated value?

Sounds like some sort of balance pot.

Get a new one.

[blown240]

Ya I tested it by itself, and got a new one.

Thanks!

[sluckey]

Are you using that Fluke T5-600 Electrical Tester? Specs say it only measures up to 1000 ohms. It's a continuity tester, not a proper ohm meter.

[blown240]

no I bought a DVM that I am using.  Its a cheap one, but seems pretty accurate.

[stratele52]

Don't forget volume pots are most of the time "audio" type, or logarytmic. Resistance are not equaly each side.

Other  ( almost all)  pots are "B" linear

Here , you'll see how to mesure "audio "pot. if not sure . Look a the bottom of pages

http://www.ladyada.net/library/metertut/resistance.html