Abstract: Apparatus for forming a yarn reserve and for moving yarn back and forth in open-end spinning devices. This type of device has at least one spinning turbine, a yarn delivery opening, and a pair of delivery rollers opposite the opening. A yarn guide rod has guide elements and is located downstream of the delivery opening in the direction of yarn movement. The yarn guide rod is displaceable in a direction transverse to the axis between the opening and the delivery rollers. This rod defines a deflection device for diverting the yarn from the axis. A drive is provided for driving the yarn guide rod and is in interruptable connection therewith. The drive moves the guide rod back and forth and moves the guide rod to a further position for providing a yarn reserve.