A method and an apparatus for concurrently fabricating a number of condenser yarns having two or more wadder filaments twisted upon each other and twiner elements which are twined between and around the wadder filaments. The wadder filaments fed in a number of groups are shed and receive a twiner filament in shed in manners similar to the feeding of warps and wefts in a usual loom. Upon beating of the twiner filament onto the wadder filaments, the twiner filament is cut to a number of twiner elements which are allocated respectively to the individual groups of the wadder filaments. The wadder filaments thus carrying the twiner elements are then twisted upon each other so that the twiner elements are twined between and around the wadder filaments thus spun.