The filament circuit can provide DC filament voltage for the magnetron.
灯丝电路供给磁控管直流灯丝电压。
Line frequency hum, primarily induced by imbalance in the filament circuit wiring, the transformer used to power the filament, coupling into the signal leads, etc.
市电频率Hum，主要原因包括灯丝线路走线导致的不平衡；供给灯丝的电源变压器（缺陷）导致电源杂波耦合进入信号通道，等等。
When a silver filament reaches the gold, it forms a short circuit, causing a dramatic change in conductance, which is easily detectable.
当一根银丝极到达金线时，它将形成一种短路，从而导致电导发生一种惊人的变化。科学家可以容易地对此进行检测。
A filament relay only checks the status of the lighting filament in the circuit route of lighting railway signal, not checks the status of another one.
在信号机点灯电路中，灯丝继电器只检查点灯灯丝的情况，不检查另外一个灯的情况。
Experimental test shows that the full load efficiency of the filament power supply can be up to 92% for the designed and manufactured compact circuit.
通过实验测试，设计的灯丝电源在兼顾小型化的同时，满载效率达到92%。
To keep the anode current stable suitably, a temperature compensated circuit based on a thermal resistor to self-regulate the filament voltage has been designed.
为使阳极电流稳定在合适的区间内，设计了一种利用热敏电阻自动调节中子管灯丝电压的温度补偿电路。
The efficient electronic ballast is composed of rectifier-filter circuit, high-frequency inverse transforming circuit, power regulation circuit and filament preheating circuit.
本发明提出了一种高效电子镇流器，由整流滤波电路、高频逆变电路、功率调节电路及灯丝预热电路组成。
Then current through C1, RT forms the return circuit-preheating filament.
于是，电流通过C1、Rt形成回路预热灯丝。
Then current through C1, RT forms the return circuit-preheating filament.
于是，电流通过C1、Rt形成回路预热灯丝。
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