单极控制器需要中心抽头绕组。
改良输出变压器还是基于麦氏的原始想法，也就是说，变压器还是按照传统的推挽输出设计，而且初级绕组具备中央抽头。
The output transformer USES the original idea presented by McIntosh, that is, the transformer is designed for a conventional push-pull output and the primary windings are halved.
如果变压器灯丝绕组有抽头，请不要使用它。
文章分析了二次绕组带有抽头的套管电流互感器(CT)，其二次端子接线错误对CT变比的影响。
The paper analyses the current transformer (ct) that secondary winding possesses casing tap, and its secondary connector wiring fault's influence on the ct changing rate.
产品输入，输出的电压高低是根据，联接组别，调节抽头多少，绕组容量分配以及次级单相绕组，净化电路的运用。
Product input and output voltage level is based on, join groups, adjust the number of taps, winding single-phase capacity allocation, and secondary windings, the use of purification circuit.
如果变压器灯丝绕组有抽头，请不要使用它。
If the filament transformer has a center tap, don 't use it.
当电机作四极运转时，先按二极运转启动，然后切换开关使主绕组抽头A2与A4连接电机既作四极运转，此时副绕组开路。
When the motor runs in four-pole mode, it is started at two-pole mode and taps A2 and A4 are then connected together. In the meantime secondary winding is open.
当电机作四极运转时，先按二极运转启动，然后切换开关使主绕组抽头A2与A4连接电机既作四极运转，此时副绕组开路。
When the motor runs in four-pole mode, it is started at two-pole mode and taps A2 and A4 are then connected together. In the meantime secondary winding is open.
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