To provide a rotary head drum device capable of multi-channelizing by a small diameter rotary drum and securing a crosstalk performance of simultaneous recording and reproducing.

This device is a rotary head drum device wherein a tape is made to run in diagonal contact with a rotary drum 2 and a fixed drum 3 for recording and reproducing, and a contact connector 12 using a coil spring is arranged on the rotor 8 of the rotary transformer for transmitting a signal to an underside of a magnetic head without contact so as to be opposed to a terminal 1b of the magnetic head 1.