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Thread: Potentiometer %

  1. #1
    Member FireMogle's Avatar
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    Potentiometer %

    Does a Potentiometer reach 0% when it is turned all the way down? I am finally finishing up my WC system and need it for the controll circuits. Thanks.

    Ps its a Radioshack one with +/- 20% tolerance if that helps.
    It's hard to look at it like a learning experence.

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  2. #2
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    Depends. Some potentiometers will go from say 50K Ohms to 0 Ohms whereas others may go from 10K Ohms to 5K Ohms. It should say on the package what it's rated.

  3. #3
    Member matttheniceguy's Avatar
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    most of the ones from places like radioshak do go to 0 ohms, or damn close at least.

    I would recomend ripping them out of old electronics rather than buying them. Just find something with knobs on it. If you ahve a decent assortmant of old junk you can almost always find something in the right range.

  4. #4
    Member penquissciguy's Avatar
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    If you don't want to go to 0 ohms you could wire a resistor in series that was the minimum value you wanted.

    Measure the resistance with a multimeter if you want to verify what its resistance is at some point.

    Ken
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  5. #5
    Member FireMogle's Avatar
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    K, thanks guys. I was just planning out my schematics and was wondering what the min R would be, thanks.
    It's hard to look at it like a learning experence.

    CPU: Intel i7 860 @ 4Ghz (22x182)
    RAM: 8GB G.Skill DDR3 1600
    Motherboard: Asus p7p55 lx
    Video: MSI N460GTX + Asus VH198T
    Hard Drives: AS596TB-32GMx2 RAID 0
    Other: HD-DVD/Blu Ray Combo Drive.
    All Powered by: Corsair 750W

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