| 摘要 |
A rotary head drum apparatus and a magnetic recording and playback apparatus wherein crosstalk between a writing signal and a playback signal transferred using independent rotary transformers is reduced and facility of assembly and rework of a magnetic head are improved. A flat disk-type rotary transformer for a writing signal and another flat disk-type rotary transformer for a playback signal are disposed adjacently in a stationary drum, and a shield plate for preventing crosstalk is interposed between the two rotary transformers. Alternatively, one of a writing rotary transformer and a playback rotary transformer is formed from a flat disk-type rotary transformer while the other is formed from a cylindrical rotary transformer, and the flat disk-type rotary transformer is disposed on a bottom portion of a stationary drum while the cylindrical rotary transformer is disposed on an outer circumference of a center boss of the stationary drum.
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