9T94A型电子管为大功率金属陶瓷三极管，采用π钍钨阴极，嵌入式栅极结构。工作25MHz,阳极输出功率为170kW,主要用于工业高频加热加热装置。

特性参数

灯丝电压.................................................. 13V

灯丝电流...................................................330A

放大系数...................................................30

跨导......................................................70mA/V

极间电容

阳栅电容..................................................114pF

阴栅电容..................................................79pF

阳阴电容..................................................3.6pF

安装方式.....................................轴向垂直，阳极向下

冷却方式..................................................水冷

出口水温..............................................60℃

金属陶瓷封接处工作温度................................250℃

高度..................................................575mm

直径..................................................178mm

净重......................................................10kg

管座：强制空气冷却

小风量………………………………………………………………1m³/min

极限运用值

阳极直流电压..........................................14kV

栅极直流电压..........................................-2000V

阳极直流电流..........................................16A

栅极直流电流..........................................-2.7A

阳极耗散功率..............................................80kW

栅极耗散功率..............................................2kW

典型工作状态

阳极直流电压..............................................14kV

阳极直流电流..............................................15.8A

栅极直流电流..............................................2.35A

栅极电流阻................................................600Ω

阳极输出功率..............................................170kW