Figure 1 is the schematic diagram of the trifilar output transformer and shows the relative connections of the windings.

图一显线并绕输出变压器的原理图，以各绕组之间的连接情况。

The three wires were fed from the three spools and wound as one wire; thus comprising the trifilar terminology.

条线线轴出来绕成一条线，而符合线并绕的要求。