Machine Head

A machine head (also referred to as a tuner, or gear head) is a geared apparatus for tuning stringed musical instruments by adjusting string tension. Machine heads are used on mandolins, guitars, double basses etc., and are usually located on the instrument's headstock. Non-geared tuning devices that are used on violins, violas, cellos, lutes, older Flamenco guitars, ukuleles etc., are known as tuning pegs.

Read more about Machine Head:  Construction and Action, Varieties, Notable Designs

Famous quotes containing the words machine and/or head:

    The white man regards the universe as a gigantic machine hurtling through time and space to its final destruction: individuals in it are but tiny organisms with private lives that lead to private deaths: personal power, success and fame are the absolute measures of values, the things to live for. This outlook on life divides the universe into a host of individual little entities which cannot help being in constant conflict thereby hastening the approach of the hour of their final destruction.
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    The back somersault, the kip-up—
    And at last, the stand on his hands,
    Perfect, with his feet together,
    His head down, evenly breathing,
    James Dickey (b. 1923)