08-07-2006, 03:41 AM
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Deity
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Join Date: Jul 2004
Location: Saint Regis Falls, NY, USA.
Posts: 3,593
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most times the screws are your key to which one is common. any one off color or black, brown is the common. eagle makes its common a deep brown color. leviton uses all brass screws with one a different shade of brass. older ones use all the same color (porcelain base) old mother of pearl push button porcelain are the same coloring. ringing out with a test light is a sure fire way of identifying the common.
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