The tensile stress-dependent magnetic properties are compared between the amorphous ribbon and wire-shaped samples having nominal composition Fe81B13.5Si3.5C2. In the wire a large and stable Barkhausen jump is observed at a low field (H*). The field (H*) at which this large Barkhausen jump is observed depends very much on the applied tensile stress. The internal stresses and the hysteresis loss is found to be higher in the wire than in the ribbon. The observed difference of magnetic properties between the ribbon and wire-shaped samples is assumed to be due to the different internal stresses developed during preparation. © 1990.