MAGNETIC REPRODUCING DEVICE AND ELECTRONIC EQUIPMENT

摘要

PROBLEM TO BE SOLVED: To exactly read magnetic data by reducing the noise of the specific frequency component. SOLUTION: The magnetic reproducing device having a function which converts the output current from a magnetic head 1 to output the change of a magnetic flux recorded on the magnetic recording medium as the change of the electric current by being in close contact with a magnetic recording medium into the voltage and amplies the current so as to reach a prescribed level has a notch filter 21 whose cut-off frequency is matched with the frequency of a noise source.