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This paper describes a wide-band balun transformer which was developed for use with a 200-Mc band-width oscilloscope deflection amplifier. The balun has a band width extending from below 50 kc to above 500 Mc. Input impedance data and pulse responses are presented. One balun coil can be used alone as a passive wide-band pulse inverter.
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Talkin et al. (1957) studied this question.
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