A voltage clamping circuit comprises a first high current gain circuit adapted to receive current from the first line; and a first switching circuit that turns on the first high current gain circuit to flow current away from the first line when the first switching circuit senses a first voltage from the first line above a clamping voltage, and turns off the first high current gain circuit when the first switching circuit senses the first voltage below the clamping voltage.

 
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> Magnetic disk drive using femto slider and having predetermined linear velocity and gram load configuration

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