Abstract: A device for recovering video information from magnetic tape, which comprises a magnetic head assembly arranged within a current-carrying casing in a manner allowing rotation of the magnetic heads with a hollow shaft. The magnetic heads are electrically coupled to the winding of a slip-ring rotor. A closed three-dimensional coupling turn couples the rotor winding to the winding of a slip-ring stator. The stator winding is electrically coupled to a reproduction amplifier through a step-up transformer and a first reproduction signal correcting circuit. The output of the reproduction amplifier is connected to a second reproduction signal correcting circuit inductively coupled to a short-circuited turn which is partly arranged within the current-carrying casing. The short-circuited turn has a lower inductance as compared to the closed three-dimensional coupling turn.

Abstract: According to the invention, the rotary magnetic head assembly comprises a current-conducting housing which accommodates magnetic heads and a contactless signal transformer device. The magnetic heads are mounted on a holder secured on a hollow shaft. The contactless signal transformer device comprises a rotor mounted on the holder and a stator spaced at a certain distance from the rotor. The rotor and stator cores are closed magnetic circuits with helical windings. The center of each turn of said windings is on a circumference matched with the center line of each of the closed magnetic circuits. The hollow shaft accommodates a current-conducting element joined to the bottom and the lid of the housing so that the lid, walls and bottom of the housing and said current-conducting element make up a closed spatial coupling loop of the rotor and stator windings. The closed magnetic circuits of the rotor and stator encompass the current-conducting element.