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resister problems — Parallax Forums

resister problems

adam4adam4 Posts: 10
edited 2007-01-05 18:39 in BASIC Stamp
putting a resistor in backwards dosn't do any thing right. and you can't have a bad resistor right as long as its the corect collors ?

Comments

  • Lee HarkerLee Harker Posts: 104
    edited 2007-01-05 14:42
    Backwards is not a problem. The color code tells the value it "should be" including tolerances. If you have doubts just measure it.

    Lee
  • Bruce BatesBruce Bates Posts: 3,045
    edited 2007-01-05 15:21
    adam4 -

    By "measure it" Lee is making reference to using a meter. All VOM (volt-ohm mters) have a resistance scale, as well as almost any kind of bench meter for measuring voltage and amperage. You DON'T need anything sophisticated or fancy to start out. A Radio Shack hand-held volt-ohm meter for less than $10.00 (or so) is fine.

    Regards,

    Bruce Bates

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  • Steve JoblinSteve Joblin Posts: 784
    edited 2007-01-05 18:39
    Adam... like everything else, a resistor can "break" or "go bad" if you put too much power through it... Resistors are rated in ohms, but also have a wattage rating (usually 1/8, 1/4, 1/2)... like everything else in electronics, you can "fry" a resistor.
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