Heater voltage 6.3 ± 0.6 V
Incandescent current 300 ± 20 mA
The nominal anode voltage (DC) 250 V
Anode voltage limit MAX 330 V
The anode current of 7.0 ± 1.8 mA
The reverse current of the first grid is 1.0 µa
Grid voltage second limit (MAX) 165 V
Grid current second 2.0 ± 0.7 mA
Power by the anode, maximum 2.5 W
Power by the second grid, maximum 0.55 W
Voltage between the cathode and the heater limit (MAX) 100 V
S= 5.0 ± 1.0 mA / V
The cut-off voltage of the electronic current of the first grid is not more than -1.3 V
Internal resistance 0.8 MOhm
Resistance in the cathode circuit for autobias 200 Ohms
The resistance in the chain of the first grid is the limit of 0.5 MOhm
Input capacity 6.5 ± 1.3 pF
Output capacity 3.05 ± 0.55 pF