Ted Bildplatten Aktiengesellschaft, Aeg-telefunken, Teldec

Aeg-telefunken-teldec

Wolfgang Rainer

Gerhard Dickopp

Benno Jahnel

Bodo Schultz

Paul Ludwig Dummen

To prolong the useful life of a diamond guide element which serves to guide a transducer and which is provided with a contact surface via which the element in use bears against the surface of a record carrier while the carrier moves relative to the element, the element is constructed so that the direction of such relative movement corresponds to a high wear resistance direction of the diamond, and the contact surface thereof is periodically ground in an opposite direction in which it has a lower wear-resistance.

Method for working or reworking a diamond guide element

A playback device for disc-shaped record carriers containing video signals stored in the grooves thereof which includes an arrangement which, in response to an applied power pulse, displaces the pickup, during playback, by a number of groove widths transversely to the direction of the groove.

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Stuhr, undefined

Wolfgang Rainer