The three wires were fed from the three spools and wound as one wire; thus comprising the trifilar terminology.
三条线从三个线轴出来绕成一条线，从而符合三线并绕的要求。
2
Since the transformer is trifilar, the turns between the screen grids are fixed and correspond to the number of primary turns already calculated.
由于采用三线并绕，廉栅极绕组的圈数也是固定了，并且和上面所计算的初级圈数一致。
3
The three windings of this modified version of the McIntosh output transformer are wound trifilar, again with proper consideration given to polarities.