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In a coupled-film magnetoresistive head, it is a requirement that both elements have exactly the same dimensions to provide common mode rejection, especially the suppression of noise spikes due to temperature excursions of the head caused by contact with medium asperities or dust particles. The dimension which is most difficult to reproduce with close tolerances is the thickness of the films and it is, therefore, desirable to make common mode rejection independent of this dimension. This is achieved by fabricating each magnetoresistive stripe together with the resistor which controls the current carried by it in the same deposition. Voltages generated by temperature changes are suppressed by the combination of two stripes, two resistors and differential amplifier since the concurrent resistivity changes in the two stripes have the same sign; the magnetic transitions in the medium, on the other hand, are sensed, since the two elements bias each other in opposite directions and the resistivity changes caused in them by an external magnetic field have opposite signs.