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

图显示了三线并绕输变压器的原理图，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.

三条线从三个线绕成条线，从而符合三线并绕的要求。